[ci] Fix version number of gradle-update/update-gradle-wrapper-action

[gruenich]

Also adjust gradle/actions/wrapper-validation to v6

Summary by CodeRabbit

• Chores
  • Updated Gradle wrapper validation configurations across build and publishing workflows to use newer tooling versions, enhancing the robustness of the continuous integration pipeline.

[coderabbitai]

📝 Walkthrough

Walkthrough

GitHub Actions workflows were tweaked to update action versions: two publish workflows switch the Gradle wrapper validation action from v3 to v6, and the update-gradle-wrapper workflow changes the gradle-update action reference from v6 to v2. No other workflow logic was changed.

Changes

Cohort / File(s)	Summary
Publish workflows .github/workflows/publish-maven-central.yml, .github/workflows/publish-snapshot.yml	Bumped gradle/actions/wrapper-validation action from @v3 to @v6. No other step inputs or logic changed.
Wrapper update workflow .github/workflows/update-gradle-wrapper.yml	Changed action reference from gradle-update/update-gradle-wrapper-action@v6 to gradle-update/update-gradle-wrapper-action@v2.

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~3 minutes

Possibly related PRs

• [ci] Update GitHub Actions to latest major/pinned release #3271 — Also updates gradle/actions/wrapper-validation to v6 across workflows.

Suggested reviewers

• juherr
• krmahadevan

Poem

🐰
Gradle leaps and trims its fur,
Actions shift, the workflows purr,
Versions tuned with nimble hop,
CI hums and never stops. ✨

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title accurately describes the main change: updating the gradle-update/update-gradle-wrapper-action version number from v6 to v2 due to a name scheme change in the CI workflows.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
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.
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.

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✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests

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[coderabbitai]

Actionable comments posted: 1

🤖 Prompt for all review comments with AI agents

Verify each finding against the current code and only fix it if needed.

Inline comments:
In @.github/workflows/update-gradle-wrapper.yml:
- Line 15: The workflow currently uses the validation action (uses:
gradle/actions/wrapper-validation@v6) which only validates the wrapper; replace
that step in the "Update Gradle Wrapper" job with the official update action
(gradle-update/gradle-update-action@vX) so it creates PRs to bump the wrapper.
Update the step "uses" reference from gradle/actions/wrapper-validation to
gradle-update/gradle-update-action, add required inputs (e.g., GITHUB_TOKEN or
repository-token) per the action docs, and keep any existing schedule/branch
settings so the job opens an automatic update PR instead of only validating.

🪄 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: defaults

Review profile: CHILL

Plan: Pro

Run ID: 261751d5-c80c-461e-abd0-ce28c99082bd

📥 Commits

Reviewing files that changed from the base of the PR and between ccc766a and 488e361.

📒 Files selected for processing (3)

• .github/workflows/publish-maven-central.yml
• .github/workflows/publish-snapshot.yml
• .github/workflows/update-gradle-wrapper.yml

[juherr]

Fix the wrapper update action

[juherr]

I don't get why the action if downgraded from v6 to v2

[gruenich]

No v6 exists. That why the execution of the action failed tonight: https://github.com/testng-team/testng/actions/runs/25146310886
I wanted to fix it this morning and wrongly replaced the action. Now it should be working again (failing with the issue as before).