chore: update pull request approval comment

Author: jpoehnelt

.github/workflows/dependabot.yml

@@ -27,6 +27,6 @@ jobs:
       GITHUB_TOKEN: ${{secrets.SYNCED_GITHUB_TOKEN_REPO}}
     steps:
       - name: approve
-        run: gh pr review --comment -b "Automatically approved since dependabot is not [configured](https://docs.github.com/en/code-security/dependabot/dependabot-version-updates/configuration-options-for-the-dependabot.yml-file#labels) with label `do not merge`."
+        run: gh pr review --comment -b "Automatically approved dependabot pull request."
       - name: merge
         run: gh pr merge --auto --squash --delete-branch "$PR_URL"