Fix dependabot automerge workflow syntax (#3048)

Author: andreaTP

.github/workflows/dependabot-automerge.yaml

@@ -17,7 +17,7 @@ jobs:
         with:
           github-token: "${{ secrets.GITHUB_TOKEN }}"
       - name: Enable auto-merge for Dependabot PRs
-        if: steps.metadata.outputs.update-type == 'version-update:semver-patch'}}
+        if: ${{ steps.metadata.outputs.update-type == 'version-update:semver-patch' }}
         run: gh pr merge --auto --merge "$PR_URL"
         env:
           PR_URL: ${{github.event.pull_request.html_url}}