Fix condition for enabling auto-merge for Dependabot PRs to check for dependency names (#74)

Author: hspaans

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

@@ -28,7 +28,7 @@ jobs:
       - name: Enable auto-merge for Dependabot PRs
         if: |
           contains(steps.metadata.outputs.package-ecosystem, 'docker') &&
-          steps.metadata.outputs.dependency-name == 'debian'
+          contains(steps.metadata.outputs.dependency-names, 'debian')
         run: gh pr merge --auto --merge "$PR_URL"
         env:
           PR_URL: ${{github.event.pull_request.html_url}}