Bump pascalgn/automerge-action from 0.16.3 to 0.16.4

Bumps [pascalgn/automerge-action](https://github.com/pascalgn/automerge-action) from 0.16.3 to 0.16.4.
- [Release notes](https://github.com/pascalgn/automerge-action/releases)
- [Commits](pascalgn/automerge-action@v0.16.3...v0.16.4)

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

Signed-off-by: dependabot[bot] <[email protected]>

.github/workflows/auto-merge-github-actions.yml

@@ -19,7 +19,7 @@ jobs:
         with:
           github-token: ${{ secrets.GH_TOKEN }}
       - name: Merge pull request
-        uses: "pascalgn/[email protected].3"
+        uses: "pascalgn/[email protected].4"
         permissions:
           contents: write
           pull-requests: write