Add a GitHub actions workflow for the ruff formatter and linter

Author: saierd

.github/workflows/ruff.yml

@@ -0,0 +1,19 @@
+name: Ruff
+on: [push, pull_request]
+
+env:
+  RUFF_VERSION: 0.11.4
+
+jobs:
+  ruff:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: astral-sh/ruff-action@v3
+        with:
+          version: ${{ env.RUFF_VERSION }}
+          args: check --output-format=github
+      - uses: astral-sh/ruff-action@v3
+        with:
+          version: ${{ env.RUFF_VERSION }}
+          args: format --diff