⬆️ Bump dependabot/fetch-metadata from 1.3.1 to 1.6.0

Bumps [dependabot/fetch-metadata](https://github.com/dependabot/fetch-metadata) from 1.3.1 to 1.6.0.
- [Release notes](https://github.com/dependabot/fetch-metadata/releases)
- [Commits](dependabot/fetch-metadata@v1.3.1...v1.6.0)

---
updated-dependencies:
- dependency-name: dependabot/fetch-metadata
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

action.yml

@@ -24,7 +24,7 @@ runs:
   - name: Dependabot metadata
     if: ${{ github.event.pull_request.user.login == inputs.required-pr-user-login }}
     id: dependabot-metadata
-    uses: dependabot/fetch-metadata@v1.3.1
+    uses: dependabot/fetch-metadata@v1.6.0
   - name: Enable auto-merge for Dependabot PRs
     if: ${{ github.event.pull_request.user.login == inputs.required-pr-user-login }}
     run: gh pr merge --auto --merge "$PR_URL"