Bump mheap/github-action-required-labels in /.github/workflows (#1410)

Bumps [mheap/github-action-required-labels](https://github.com/mheap/github-action-required-labels) from 5.5.0 to 5.5.1.
- [Release notes](https://github.com/mheap/github-action-required-labels/releases)
- [Commits](mheap/github-action-required-labels@388fd6a...8afbe8a)

---
updated-dependencies:
- dependency-name: mheap/github-action-required-labels
  dependency-version: 5.5.1
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

.github/workflows/required-labels.yml

@@ -24,7 +24,7 @@ jobs:
           labels=$(yq '[.categories[].labels] + .exclude-labels | flatten | unique | sort | @tsv' .github/release-drafter.yml | tr '\t' ',')
           echo "labels=$labels" >> "${GITHUB_OUTPUT}"
       - id: check-labels
-        uses: mheap/github-action-required-labels@388fd6af37b34cdfe5a23b37060e763217e58b03 # v5.5
+        uses: mheap/github-action-required-labels@8afbe8ae6ab7647d0c9f0cfa7c2f939650d22509 # v5.5
         with:
           mode: exactly
           count: 1