Fix flaky odo dev test on Podman by randomizing component names

[rm3l]

What type of PR is this:
/kind flake
/kind bug
/area testing

What does this PR do / why we need it:

This fixes the flakiness of the test reported in #6832, by randomizing the component names used in this test.

It also changes the signature of helper.CopyExampleDevfile so as to make sure we don't forget to set a component name when copying an example Devfile.

Which issue(s) this PR fixes:
Fixes #6832

PR acceptance criteria:

• Unit test

• Integration test

• Documentation

How to test changes / Special notes to the reviewer:

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[valaparthvi]

 ? What configuration do you want change? Add new environment variable
  ? Enter new environment variable name: 
  ======================
  Unexpected error:
      <*xpty.errPassthroughTimeout | 0xc000540020>: {
          error: <*errors.errorString | 0xc000540000>{
              s: "passthrough i/o timeout",
          },
      }
      passthrough i/o timeout
  occurred
  In [It] at: /go/odo_1/tests/helper/helper_interactive.go:111 @ 05/22/23 16:29:38.719
------------------------------

Summarizing 1 Failure:
  [FAIL] odo init interactive command tests label unauth personalizing Devfile configuration [It] should allow for personalizing configurations [unauth]
  /go/odo_1/tests/helper/helper_interactive.go:111

/override OpenShift-Integration-tests/OpenShift-Unauth-Integration-tests

[openshift-ci]

@valaparthvi: Overrode contexts on behalf of valaparthvi: OpenShift-Integration-tests/OpenShift-Unauth-Integration-tests

In response to this:

? What configuration do you want change? Add new environment variable
 ? Enter new environment variable name: 
 ======================
 Unexpected error:
     <*xpty.errPassthroughTimeout | 0xc000540020>: {
         error: <*errors.errorString | 0xc000540000>{
             s: "passthrough i/o timeout",
         },
     }
     passthrough i/o timeout
 occurred
 In [It] at: /go/odo_1/tests/helper/helper_interactive.go:111 @ 05/22/23 16:29:38.719
------------------------------

Summarizing 1 Failure:
 [FAIL] odo init interactive command tests label unauth personalizing Devfile configuration [It] should allow for personalizing configurations [unauth]
 /go/odo_1/tests/helper/helper_interactive.go:111

/override OpenShift-Integration-tests/OpenShift-Unauth-Integration-tests

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes/test-infra repository.

[rm3l]

  [odo]  X  stderr: 
  [odo] 
  [odo]  X  err: error while streaming command: error sending request: Post "https://c114-e.eu-de.containers.cloud.ibm.com:30329/api/v1/namespaces/cmd-describe-component-test362aft/pods/fjwtzg-app-854fcbcffd-brrrp/exec?command=tar&command=xf&command=-&command=-C&command=%2Fproject&command=--no-same-owner&container=runtime&stderr=true&stdin=true&stdout=true": dial tcp 158.177.107.50:30329: connectex: A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond.
  [odo] 
  [odo] I0522 11:44:53.254533   12196 status.go:34] setting inner loop State "Ready"
  [odo] 
 X  Syncing files into the container [22s]
  [odo] I0522 11:44:53.254533   12196 watch.go:428] Error from Push: watch command was unable to push component: failed to sync to component with name fjwtzg: failed to sync to component with name fjwtzg: unable push files to pod: error while streaming command: error sending request: Post "https://c114-e.eu-de.containers.cloud.ibm.com:30329/api/v1/namespaces/cmd-describe-component-test362aft/pods/fjwtzg-app-854fcbcffd-brrrp/exec?command=tar&command=xf&command=-&command=-C&command=%2Fproject&command=--no-same-owner&container=runtime&stderr=true&stdin=true&stdout=true": dial tcp 158.177.107.50:30329: connectex: A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond.
  [odo] Error occurred on Push - watch command was unable to push component: failed to sync to component with name fjwtzg: failed to sync to component with name fjwtzg: unable push files to pod: error while streaming command: error sending request: Post "https://c114-e.eu-de.containers.cloud.ibm.com:30329/api/v1/namespaces/cmd-describe-component-test362aft/pods/fjwtzg-app-854fcbcffd-brrrp/exec?command=tar&command=xf&command=-&command=-C&command=%2Fproject&command=--no-same-owner&container=runtime&stderr=true&stdin=true&stdout=true": dial tcp 158.177.107.50:30329: connectex: A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond.
...
Summarizing 1 Failure:
  [FAIL] odo describe component command tests when creating a component when running odo dev (podman=false,debug=true) JSON output when describing the component in dev mode [It] should describe the component
  C:/Users/Administrator.ANSIBLE-TEST-VS/3989/tests/helper/helper_generic.go:318

Ran 473 of 890 Specs in 1683.010 seconds
FAIL! -- 472 Passed | 1 Failed | 0 Pending | 417 Skipped

Network issues on Windows - tracked in #6838

/override windows-integration-test/Windows-test

[openshift-ci]

@rm3l: Overrode contexts on behalf of rm3l: windows-integration-test/Windows-test

In response to this:

 [odo]  X  stderr: 
 [odo] 
 [odo]  X  err: error while streaming command: error sending request: Post "https://c114-e.eu-de.containers.cloud.ibm.com:30329/api/v1/namespaces/cmd-describe-component-test362aft/pods/fjwtzg-app-854fcbcffd-brrrp/exec?command=tar&command=xf&command=-&command=-C&command=%2Fproject&command=--no-same-owner&container=runtime&stderr=true&stdin=true&stdout=true": dial tcp 158.177.107.50:30329: connectex: A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond.
 [odo] 
 [odo] I0522 11:44:53.254533   12196 status.go:34] setting inner loop State "Ready"
 [odo] 
X  Syncing files into the container [22s]
 [odo] I0522 11:44:53.254533   12196 watch.go:428] Error from Push: watch command was unable to push component: failed to sync to component with name fjwtzg: failed to sync to component with name fjwtzg: unable push files to pod: error while streaming command: error sending request: Post "https://c114-e.eu-de.containers.cloud.ibm.com:30329/api/v1/namespaces/cmd-describe-component-test362aft/pods/fjwtzg-app-854fcbcffd-brrrp/exec?command=tar&command=xf&command=-&command=-C&command=%2Fproject&command=--no-same-owner&container=runtime&stderr=true&stdin=true&stdout=true": dial tcp 158.177.107.50:30329: connectex: A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond.
 [odo] Error occurred on Push - watch command was unable to push component: failed to sync to component with name fjwtzg: failed to sync to component with name fjwtzg: unable push files to pod: error while streaming command: error sending request: Post "https://c114-e.eu-de.containers.cloud.ibm.com:30329/api/v1/namespaces/cmd-describe-component-test362aft/pods/fjwtzg-app-854fcbcffd-brrrp/exec?command=tar&command=xf&command=-&command=-C&command=%2Fproject&command=--no-same-owner&container=runtime&stderr=true&stdin=true&stdout=true": dial tcp 158.177.107.50:30329: connectex: A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond.
...
Summarizing 1 Failure:
 [FAIL] odo describe component command tests when creating a component when running odo dev (podman=false,debug=true) JSON output when describing the component in dev mode [It] should describe the component
 C:/Users/Administrator.ANSIBLE-TEST-VS/3989/tests/helper/helper_generic.go:318

Ran 473 of 890 Specs in 1683.010 seconds
FAIL! -- 472 Passed | 1 Failed | 0 Pending | 417 Skipped

Network issues on Windows - tracked in #6838

/override windows-integration-test/Windows-test

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes/test-infra repository.