chore(ci): Sanitize ref name before using it as container tag

[caponetto]

Description

This PR fixes the CI errors we are seeing on dependabot PRs. As the ref name is used to compose the image tag, it cannot be used directly since it can contain invalid chars for the image tag.

How Has This Been Tested?

Run the workflow with these changes

Merge criteria:

• The commits are squashed in a cohesive manner and have meaningful messages.
• Testing instructions have been added in the PR body (for PRs involving changes that are not immediately obvious).
• The developer has manually tested the changes and verified that the changes work

[jstourac]

/lgm

[jiridanek]

/lgtm

[openshift-ci]

[APPROVALNOTIFIER] This PR is APPROVED

Approval requirements bypassed by manually added approval.

This pull-request has been approved by:

The full list of commands accepted by this bot can be found here.

The pull request process is described here

Needs approval from an approver in each of these files:

• OWNERS

Approvers can indicate their approval by writing /approve in a comment
Approvers can cancel approval by writing /approve cancel in a comment

[caponetto]

/override ci/prow/rocm-notebooks-e2e-tests
/override ci/prow/images

[openshift-ci]

@caponetto: Overrode contexts on behalf of caponetto: ci/prow/images, ci/prow/rocm-notebooks-e2e-tests

In response to this:

/override ci/prow/rocm-notebooks-e2e-tests
/override ci/prow/images

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-sigs/prow repository.

[harshad16]

/override ci/prow/rocm-notebooks-e2e-tests
/override ci/prow/images

[openshift-ci]

@harshad16: Overrode contexts on behalf of harshad16: ci/prow/images, ci/prow/rocm-notebooks-e2e-tests

In response to this:

/override ci/prow/rocm-notebooks-e2e-tests
/override ci/prow/images

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-sigs/prow repository.