fix: Add echo to actor in dependabot automerge (#694)

Author: AlejandroFernandezLuces

.github/workflows/dependabot_automerge.yml

@@ -16,6 +16,9 @@ jobs:
         with:
           github-token: ${{ secrets.GITHUB_TOKEN }}
 
+      - name: Print actor
+        run: echo "Actor is ${{github.actor}}"
+
       - name: Approve a PR
         run: gh pr review --approve "$PR_URL"
         env: