chore: bump GitHub Actions to Node 24-compatible versions

[TMHSDigital]

Phase 2 of TMHSDigital/Developer-Tools-Directory#18 (Node 20 deprecation, deadline 2026-06-02). Uniform action version bumps across this repo's workflows. dependency-review-action remains at v4 due to upstream block (tracked in #32).

[github-actions]

Dependency Review

The following issues were found:

• ✅ 0 vulnerable package(s)
• ✅ 0 package(s) with incompatible licenses
• ✅ 0 package(s) with invalid SPDX license definitions
• ⚠️ 3 package(s) with unknown licenses.

See the Details below.

License Issues

.github/workflows/label-sync.yml

Package	Version	License	Issue Type
actions/checkout	6.*.*	Null	Unknown License

.github/workflows/stale.yml

Package	Version	License	Issue Type
actions/stale	10.*.*	Null	Unknown License

.github/workflows/validate.yml

Package	Version	License	Issue Type
actions/checkout	6.*.*	Null	Unknown License

OpenSSF Scorecard

Package	Version	Score	Details
actions/actions/checkout	6.*.*	🟢 5.7	Details Check Score Reason Binary-Artifacts 🟢 10 no binaries found in the repo Maintained ⚠️ 0 0 commit(s) and 0 issue activity found in the last 90 days -- score normalized to 0 Code-Review 🟢 10 all changesets reviewed Dangerous-Workflow 🟢 10 no dangerous workflow patterns detected Token-Permissions ⚠️ 0 detected GitHub workflow tokens with excessive permissions CII-Best-Practices ⚠️ 0 no effort to earn an OpenSSF best practices badge detected Fuzzing ⚠️ 0 project is not fuzzed Packaging ⚠️ -1 packaging workflow not detected License 🟢 10 license file detected Signed-Releases ⚠️ -1 no releases found Pinned-Dependencies 🟢 3 dependency not pinned by hash detected -- score normalized to 3 Security-Policy 🟢 9 security policy file detected Branch-Protection 🟢 5 branch protection is not maximal on development and all release branches SAST 🟢 8 SAST tool detected but not run on all commits
actions/actions/stale	10.*.*	🟢 5.3	Details Check Score Reason Maintained 🟢 3 4 commit(s) and 0 issue activity found in the last 90 days -- score normalized to 3 Code-Review 🟢 10 all changesets reviewed Dangerous-Workflow 🟢 10 no dangerous workflow patterns detected Packaging ⚠️ -1 packaging workflow not detected Binary-Artifacts 🟢 10 no binaries found in the repo CII-Best-Practices ⚠️ 0 no effort to earn an OpenSSF best practices badge detected Token-Permissions ⚠️ 0 detected GitHub workflow tokens with excessive permissions Pinned-Dependencies ⚠️ 0 dependency not pinned by hash detected -- score normalized to 0 License 🟢 10 license file detected Fuzzing ⚠️ 0 project is not fuzzed Signed-Releases ⚠️ -1 no releases found Security-Policy 🟢 9 security policy file detected Branch-Protection ⚠️ 1 branch protection is not maximal on development and all release branches SAST 🟢 7 SAST tool is not run on all commits -- score normalized to 7
actions/actions/checkout	6.*.*	🟢 5.7	Details Check Score Reason Binary-Artifacts 🟢 10 no binaries found in the repo Maintained ⚠️ 0 0 commit(s) and 0 issue activity found in the last 90 days -- score normalized to 0 Code-Review 🟢 10 all changesets reviewed Dangerous-Workflow 🟢 10 no dangerous workflow patterns detected Token-Permissions ⚠️ 0 detected GitHub workflow tokens with excessive permissions CII-Best-Practices ⚠️ 0 no effort to earn an OpenSSF best practices badge detected Fuzzing ⚠️ 0 project is not fuzzed Packaging ⚠️ -1 packaging workflow not detected License 🟢 10 license file detected Signed-Releases ⚠️ -1 no releases found Pinned-Dependencies 🟢 3 dependency not pinned by hash detected -- score normalized to 3 Security-Policy 🟢 9 security policy file detected Branch-Protection 🟢 5 branch protection is not maximal on development and all release branches SAST 🟢 8 SAST tool detected but not run on all commits

Scanned Files

• .github/workflows/label-sync.yml
• .github/workflows/stale.yml
• .github/workflows/validate.yml