chore(ci): bump planetscale/ghcommit-action (#8889)

Bumps the gh-actions-packages group with 1 update: [planetscale/ghcommit-action](https://github.com/planetscale/ghcommit-action).


Updates `planetscale/ghcommit-action` from 0.2.13 to 0.2.15
- [Release notes](https://github.com/planetscale/ghcommit-action/releases)
- [Commits](planetscale/ghcommit-action@5b20c92...6a383e7)

---
updated-dependencies:
- dependency-name: planetscale/ghcommit-action
  dependency-version: 0.2.15
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: gh-actions-packages
...

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

Author: dependabot[bot]

.github/workflows/add-release-to-cloudfoundry.yaml

@@ -43,7 +43,7 @@ jobs:
         run: |
           echo "${{ steps.get-release-version.outputs.VERSION }}: ${{ steps.get-release-url.outputs.URL }}" >> index.yml
       - name: Commit and push changes
-        uses: planetscale/ghcommit-action@5b20c92facae8dbf8a3836dc65b8503dda378573 # v0.2.13
+        uses: planetscale/ghcommit-action@6a383e778f6620afde4bf4b45069d3c6983c1ae2 # v0.2.15
         with:
           commit_message: "chore: Add version ${{ steps.get-release-version.outputs.VERSION }} to Cloud Foundry"
           repo: ${{ github.repository }}