add ruff to CI checks

.github/workflows/formatting.yml → .github/workflows/formatting_linting.yml

@@ -1,4 +1,4 @@
-name: "Black"
+name: "Ruff/Black"
 
 on:
   push:
@@ -19,6 +19,12 @@ jobs:
         uses: actions/checkout@v4
 
       - name: Code formatting
+        uses: chartboost/ruff-action@v1
+        with:
+          args: "check --preview"
+
+      - name: Notebook formatting
         uses: psf/black@stable
         with:
+          src: "docs/notebooks/"
           jupyter: true