Bump pascalgn/automerge-action from 0.15.2 to 0.15.3 (#82)

Bumps [pascalgn/automerge-action](https://github.com/pascalgn/automerge-action) from 0.15.2 to 0.15.3.
- [Release notes](https://github.com/pascalgn/automerge-action/releases)
- [Commits](https://github.com/pascalgn/automerge-action/compare/v0.15.2...v0.15.3)

---
updated-dependencies:
- dependency-name: pascalgn/automerge-action
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

.github/workflows/ci.yml

@@ -50,7 +50,7 @@ jobs:
         with:
           github-token: "${{ secrets.GITHUB_TOKEN }}"
       - name: Merge
-        uses: pascalgn/automerge-action@v0.15.2
+        uses: pascalgn/automerge-action@v0.15.3
         env:
           GITHUB_TOKEN: "${{ secrets.GITHUB_TOKEN }}"
           MERGE_LABELS: "dependencies"