Use managed token for bundle release builds

Author: mlr

.github/workflows/release-ui-bundle.yml

@@ -16,7 +16,7 @@ jobs:
        - name: Configure Git Credentials
          uses: de-vri-es/setup-git-credentials@v2
          with:
-           credentials: ${{ secrets.GIT_CREDENTIALS }}
+           credentials: https://${{ secrets.DOCS_GITHUB_PAT }}@github.com
 
        - name: Checkout Repository
          uses: actions/checkout@v4
@@ -25,8 +25,6 @@ jobs:
 
        - name: Check Last Commit Message
          id: skip_release
-         env:
-           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
          run: |
            last_commit_message=$(git log -1 --pretty=%B)
            if [[ $last_commit_message == *"[no-release]"* ]]; then