Add CI workflow and Makefile target for unit tests

[ChughShilpa]

Description

• Add .github/workflows/go-unit-test.yml that runs go test ./tests/common/support/... on PRs and pushes to main
• Add make unit-test Makefile target for local convenience

Why

The support package has 13 unit test files that validate shared helpers (fake clients, resource builders, environment getters, etc.). A regression here could silently break assumptions across all e2e test suites.

How Has This Been Tested?

• go test ./tests/common/support/... passed locally
  • Verify workflow triggers on a PR that touches Go files

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

Summary by CodeRabbit

• Chores
  • Added automated unit testing workflow triggered on Go file changes.
  • Added make target for running unit tests for support packages.

[openshift-ci]

[APPROVALNOTIFIER] This PR is NOT APPROVED

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[coderabbitai]

📝 Walkthrough

Walkthrough

This PR introduces automated unit testing for support packages. A new GitHub Actions workflow (.github/workflows/go-unit-test.yml) is added that triggers on pushes and pull requests affecting Go files or module files, checks out the repository, configures Go using go.mod, and runs go test ./tests/common/support/... with read-only permissions. A corresponding Makefile target unit-test is also added to allow local execution of the same test suite.

Estimated code review effort

🎯 2 (Simple) | ⏱️ ~8 minutes

🚥 Pre-merge checks | ✅ 4

✅ Passed checks (4 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title accurately reflects the main changes: adding a CI workflow (.github/workflows/go-unit-test.yml) and a Makefile target (unit-test), both for running unit tests.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

_{✏️ Tip: You can configure your own custom pre-merge checks in the settings.}

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[coderabbitai]

Actionable comments posted: 2

🤖 Prompt for all review comments with AI agents

Verify each finding against current code. Fix only still-valid issues, skip the
rest with a brief reason, keep changes minimal, and validate.

Inline comments:
In @.github/workflows/go-unit-test.yml:
- Line 22: Replace tag-based action references with full commit SHAs: locate the
workflow steps that use actions via tag refs (e.g., the uses entry
"actions/checkout@v4" and any other "uses: ...@vX" like the one on line 24) and
update them to pin to the corresponding full commit SHA for that action
repository; ensure every uses: entry in the file references a commit SHA instead
of a tag and verify the SHAs match the trusted release commits for
actions/checkout and any other third-party actions.
- Line 22: The checkout step currently uses actions/checkout@v4 without
disabling credential persistence; update the checkout invocation (the step using
actions/checkout@v4) to include persist-credentials: false so the GITHUB_TOKEN
is not written to .git/config and cannot be reused by subsequent steps or
actions.

🪄 Autofix (Beta)

Fix all unresolved CodeRabbit comments on this PR:

• Push a commit to this branch (recommended)
• Create a new PR with the fixes

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ℹ️ Review info

⚙️ Run configuration

Configuration used: Central YAML (base), Organization UI (inherited)

Review profile: CHILL

Plan: Enterprise

Run ID: f5a3b5af-1697-4031-9739-678e8cf31dcb

📥 Commits

Reviewing files that changed from the base of the PR and between 96867f4 and c5d1928.

📒 Files selected for processing (2)

• .github/workflows/go-unit-test.yml
• Makefile