fix doc privs for pushing new prs to docs

.github/workflows/github-pages.yml

@@ -13,6 +13,10 @@ on:
 jobs:
   build-and-deploy:
     runs-on: ubuntu-latest
+    environment: linutil_env
+    permissions:
+      contents: write
+      pull-requests: write
 
     steps:
       - name: Checkout Repository
@@ -24,11 +28,17 @@ jobs:
         run: |
           echo -e "<!-- THIS FILE IS GENERATED AUTOMATICALLY. EDIT .github/CONTRIBUTING.md -->\n\n$(cat .github/CONTRIBUTING.md)" > 'docs/contributing.md'
 
-      - uses: stefanzweifel/git-auto-commit-action@v5
+      - name: Create Pull Request
+        uses: peter-evans/create-pull-request@v6
         with:
-          commit_message: Commit Contributing Guidelines
-          file_pattern: "docs/contributing.md"
-          add_options: '--force'
+          commit-message: Update Contributing Guidelines
+          title: 'docs: Update Contributing Guidelines'
+          body: 'Automated update of Contributing Guidelines from .github/CONTRIBUTING.md'
+          branch: update-contributing-guidelines
+          delete-branch: true
+          base: main
+          labels: documentation
+          token: ${{ secrets.PAT_TOKEN }}
         if: success()
 
       - name: Setup Python