Added an a check that validates if an similar PR already exists.

.gitea/workflows/maintenance.yaml

@@ -30,8 +30,8 @@ jobs:
       uses: ./
       with:
         github_token: ${{ secrets.GITHUB_TOKEN }}
-        branch: my-branch
-        pr_title: My PR Title
-        pr_body: My PR Body
+        branch: update/pre-commit-hooks
+        title: My PR Title
+        body: My PR Body
         assignees: Philipp
         reviewers: Philipp