Skip IBM Cloud and Podman tests for doc-only PRs

[rm3l]

/kind user-story
/area testing

User Story

As an odo developer, I want tests to be skipped if my PR only changes files in the website folder, So that I can save some time and resource usage, and also unblock other potential code-related PRs waiting in the testing job queue.

Those tests take some time to finish and block other jobs from running; and, most of the time, we are just ignoring the result.

We don't have doc-specific tests now; doc-related changes are currently checked by looking at the deploy logs on Netlify and the deploy preview website. But once we have such tests (e.g., for #6617), they will need to run.

Acceptance Criteria

• It should skip Podman-related tests for doc-only changes: this can be done on GitHub with the paths and paths-ignore filters (https://docs.github.com/en/actions/using-workflows/workflow-syntax-for-github-actions#onpushpull_requestpull_request_targetpathspaths-ignore)
• It should skip IBM Cloud tests for doc-only changes
  • Investigate if IBM Cloud natively supports adding filters.
  • If not supported by IBM Cloud, we'll need to handle it in the testing scripts

Links

• Related Epic (mandatory):

/kind user-story