Bump peter-evans/commit-comment from 3 to 4

Bumps [peter-evans/commit-comment](https://github.com/peter-evans/commit-comment) from 3 to 4.
- [Release notes](https://github.com/peter-evans/commit-comment/releases)
- [Commits](peter-evans/commit-comment@v3...v4)

---
updated-dependencies:
- dependency-name: peter-evans/commit-comment
  dependency-version: '4'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

.github/workflows/apply-reuse.yml

@@ -94,7 +94,7 @@ jobs:
     steps:
       - name: Commit comment
         if: needs.add-headers.outputs.made-change == 1
-        uses: peter-evans/commit-comment@v3
+        uses: peter-evans/commit-comment@v4
         with:
           body: >
             Copyright updates at [.../compare/${{ inputs.branch }}...${{ needs.add-headers.outputs.branch }}](${{ github.server_url }}/${{ github.repository }}/compare/${{ inputs.branch }}...${{ needs.add-headers.outputs.branch }}?expand=1), please review and merge.