Fix invalid YAML formatting in Dependabot workflow template

Signed-off-by: Mathias L. Baumann <[email protected]>

Author: Marenz

cookiecutter/migrate.py

@@ -63,15 +63,13 @@ def create_dependabot_auto_merge_workflow() -> None:
     runs-on: ubuntu-latest
     steps:
       - name: Auto-merge Dependabot PR
-        uses: >-
-          frequenz-floss/dependabot-auto-approve@3cad5f42e79296505473325ac6636be897c8b8a1
-
+        uses: frequenz-floss/dependabot-auto-approve@3cad5f42e79296505473325ac6636be897c8b8a1 # v1.3.2
         with:
           github-token: ${{ secrets.GITHUB_TOKEN }}
-          dependency-type: 'all'
-          auto-merge: 'true'
-          merge-method: 'merge'
-          add-label: 'tool:auto-merged'
+          dependency-type: all
+          auto-merge: true
+          merge-method: merge
+          add-label: tool:auto-merged
 """
 
     workflow_file = workflow_dir / "auto-dependabot.yaml"