Bump pascalgn/automerge-action from 0.15.3 to 0.15.5

Bumps [pascalgn/automerge-action](https://github.com/pascalgn/automerge-action) from 0.15.3 to 0.15.5.
- [Release notes](https://github.com/pascalgn/automerge-action/releases)
- [Commits](https://github.com/pascalgn/automerge-action/compare/v0.15.3...v0.15.5)

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

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

.github/workflows/transifex.yml

@@ -15,7 +15,7 @@ jobs:
     runs-on: ubuntu-latest
     name: Auto-merge
     steps:
-      - uses: pascalgn/automerge-action@v0.15.3
+      - uses: pascalgn/automerge-action@v0.15.5
         if: github.actor == 'transifex-integration[bot]'
         env:
           GITHUB_TOKEN: "${{ secrets.GITHUB_TOKEN }}"