Check format

Author: Y--

.github/workflows/MainDistributionPipeline.yml

@@ -56,4 +56,21 @@ jobs:
       ci_tools_version: v1.3.0
       duckdb_version: v1.3.0
       exclude_archs: 'wasm_mvp;wasm_eh;wasm_threads'
-      deploy_latest: ${{ startsWith(github.ref, 'refs/tags/v') || github.ref == 'refs/heads/main' }}
+      deploy_latest: ${{ startsWith(github.ref, 'refs/tags/v') || github.ref == 'refs/heads/main' }}
+
+  format-check:
+    name: Check formatting
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout DuckDB UI repository
+        uses: actions/checkout@v4
+
+      - name: Checkout Extension CI tools
+        uses: actions/checkout@v4
+        with:
+          path: 'extension-ci-tools'
+          ref: v1.3.0
+          repository: duckdb/extension-ci-tools
+
+      - name: Check formatting
+        run: make format-check