add prek workflow

Author: d-v-b

.github/workflows/lint.yml

@@ -0,0 +1,25 @@
+name: Lint
+
+on:
+  push:
+    branches: [main, 3.1.x]
+  pull_request:
+    branches: [main, 3.1.x]
+  workflow_dispatch:
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
+jobs:
+  lint:
+    name: Lint
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v6
+      - name: Install uv
+        uses: astral-sh/setup-uv@v5
+      - name: Install prek
+        run: uv tool install prek
+      - name: Run prek
+        run: prek run --all-files