Add autofix CI job

.github/workflows/autofix.yml

@@ -0,0 +1,23 @@
+
+name: autofix.ci # needed to securely identify the workflow
+
+on:
+  pull_request:
+
+permissions:
+  contents: read
+
+jobs:
+  autofix:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Install npx (for prettier)
+        run: sudo apt install nodejs
+
+      - name: Format
+        run: ./scripts/format.sh
+
+      # Get latest version from https://autofix.ci/setup
+      - uses: autofix-ci/action@dd55f44df8f7cdb7a6bf74c78677eb8acd40cd0a