[CI] Auto format code (#13053)

.github/workflows/auto-format.yml

@@ -0,0 +1,71 @@
+name: Auto Format Code
+
+on:
+  pull_request:
+    types: [labeled]
+
+permissions:
+  contents: write
+  pull-requests: write
+
+jobs:
+  auto-format:
+    if: github.event.label.name == 'format'
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout PR branch
+        uses: actions/checkout@v4
+        with:
+          ref: ${{ github.event.pull_request.head.ref }}
+          repository: ${{ github.event.pull_request.head.repo.full_name }}
+          token: ${{ secrets.GITHUB_TOKEN }}
+          fetch-depth: 0
+
+      - name: Set up Python
+        uses: actions/setup-python@v4
+        with:
+          python-version: "3.10"
+
+      - name: Install pre-commit hook
+        run: |
+          python -m pip install pre-commit
+          pre-commit install
+
+      - name: Run pre-commit to format code
+        run: SKIP=no-commit-to-branch pre-commit run --all-files
+        continue-on-error: true
+
+      - name: Check for changes
+        id: check_changes
+        run: |
+          if [[ -n $(git status -s) ]]; then
+            echo "has_changes=true" >> $GITHUB_OUTPUT
+          else
+            echo "has_changes=false" >> $GITHUB_OUTPUT
+          fi
+
+      - name: Commit and push changes
+        if: steps.check_changes.outputs.has_changes == 'true'
+        run: |
+          git config --local user.email "github-actions[bot]@users.noreply.github.com"
+          git config --local user.name "github-actions[bot]"
+          git add .
+          git commit -m "🤖 Auto-format code with isort, black, ruff, and clang-format"
+          git push
+
+      - name: Remove format label
+        if: always()
+        uses: actions/github-script@v7
+        with:
+          github-token: ${{ secrets.GITHUB_TOKEN }}
+          script: |
+            try {
+              await github.rest.issues.removeLabel({
+                owner: context.repo.owner,
+                repo: context.repo.repo,
+                issue_number: context.issue.number,
+                name: 'format'
+              });
+            } catch (error) {
+              console.log('Label may have already been removed');
+            }