build: update GitHub Actions to Node.js 24 versions

[maxandersen]

Summary

Update GitHub Actions dependencies to versions that use Node.js 24, avoiding the deprecation warnings:

Node.js 20 actions are deprecated. Actions will be forced to run with Node.js 24 by default starting June 2nd, 2026.

Changes

Action	Old	New	Node
actions/setup-java	v4	v5	24
gradle/actions/setup-gradle	v4	v6	24
actions/download-artifact	v4	v8	24
actions/upload-artifact	v4	v7	24
graalvm/setup-graalvm	v1.4	v1.5.3	24
mikepenz/action-junit-report	v5	v6	24

Only mxschmitt/action-tmate remains on Node.js 20 (no Node 24 release yet, debug-only usage).

Also fixes shell: bash on artifact.ci link steps that fail on Windows with PowerShell default shell.

Files changed

• .github/actions/shared-build-setup/action.yml
• .github/actions/shared-test-archiving/action.yml
• .github/workflows/main-build.yml
• .github/workflows/publish-packages.yml
• .github/workflows/report.yml
• .github/workflows/step-ci-build.yml
• .github/workflows/tag-and-release.yml

Summary by CodeRabbit

• Chores
  • Updated CI/CD GitHub Actions to newer versions across build, test, and release pipelines for improved stability and compatibility.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro Plus

Run ID: eef6feb4-7e3e-4687-a84f-9b3af02217ca

📥 Commits

Reviewing files that changed from the base of the PR and between 1a6383b and 71d5489.

📒 Files selected for processing (7)

• .github/actions/shared-build-setup/action.yml
• .github/actions/shared-test-archiving/action.yml
• .github/workflows/main-build.yml
• .github/workflows/publish-packages.yml
• .github/workflows/report.yml
• .github/workflows/step-ci-build.yml
• .github/workflows/tag-and-release.yml

---

📝 Walkthrough

Walkthrough

This PR updates pinned versions of GitHub Actions across seven workflow and action files. The changes upgrade setup-java, gradle/setup-gradle, actions/upload-artifact, actions/download-artifact, graalvm/setup-graalvm, and mikepenz/action-junit-report to newer major versions while preserving all step configuration and artifact names.

Changes

GitHub Actions version pinning updates

Layer / File(s)	Summary
Shared action setup versions .github/actions/shared-build-setup/action.yml	Java setup (v4→v5) and Gradle setup (v4→v6) action pins are updated in the reusable shared build setup action.
Shared action artifact archiving .github/actions/shared-test-archiving/action.yml	Upload artifact action is updated from v4 to v7 for Allure HTML reports, raw results, and combined test report uploads.
CI test and reporting workflows .github/workflows/step-ci-build.yml, .github/workflows/report.yml	build-shared, build-test-native-image, unit-test-jvm, integration-test-jvm, smoke-test, and merge-test-reports jobs update upload/download artifacts to v7/v8. GraalVM setup is pinned to a newer revision. Test reporting via mikepenz/action-junit-report is updated from v5 to v6 with explicit bash shell retained for artifact.ci links step.
Build and release workflow updates .github/workflows/main-build.yml, .github/workflows/publish-packages.yml, .github/workflows/tag-and-release.yml	jreleaser, publish, announce, chocolatey, and tag-release jobs update setup-java (v4→v5), gradle/setup-gradle (v4→v6), and artifact upload/download actions from v4 to v7/v8 while preserving artifact names and paths.

🎯 2 (Simple) | ⏱️ ~12 minutes

Possibly Related PRs

• jbangdev/jbang#2469: Both PRs update .github/workflows/main-build.yml's jreleaser job to pin actions/download-artifact to specific commit SHAs.

Poem

🐰 Hop, hop, hooray! The versions align,
Actions renewed with pins that shine.
From v4 to v5, then v6, v7, v8 so bright,
Your CI/CD pipeline runs through the night! ✨

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title accurately describes the main change: updating GitHub Actions to Node.js 24-compatible versions across multiple workflow files.
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.

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

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch update-gh-actions-node24

---

_{Comment @coderabbitai help to get the list of available commands and usage tips.}

[maxandersen]

verified in #2473 that it works - just keeping in separate PR to make 2473 simpler