[Dependencies]: Bump pascalgn/automerge-action from 0.15.6 to 0.16.0

Bumps [pascalgn/automerge-action](https://github.com/pascalgn/automerge-action) from 0.15.6 to 0.16.0.
- [Release notes](https://github.com/pascalgn/automerge-action/releases)
- [Commits](pascalgn/automerge-action@v0.15.6...v0.16.0)

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

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

.github/workflows/merge-dependabot.yml

@@ -46,7 +46,7 @@ jobs:
             core.info('Owner: ${{github.repository_owner}}');
       - name: "Auto-Merge"
         if: github.repository_owner == 'funfair-tech'
-        uses: pascalgn/automerge-action@v0.15.6
+        uses: pascalgn/automerge-action@v0.16.0
         env:
           GITHUB_TOKEN: ${{secrets.SOURCE_PUSH_TOKEN}}
           MERGE_METHOD: merge