ci(commitlint): skip dependabot pull request branches

.github/workflows/commitlint.yml

@@ -19,7 +19,7 @@ jobs:
   commitlint:
     name: Validate Commit Messages
     runs-on: ubuntu-latest
-    if: ${{ github.actor != 'dependabot[bot]' }}
+    if: ${{ github.actor != 'dependabot[bot]' && !startsWith(github.head_ref, 'dependabot/') }}
     timeout-minutes: 10
     steps:
       - name: Checkout