Exclude docs and tests from linting

Author: RalfG

.github/workflows/test.yml

@@ -20,6 +20,8 @@ jobs:
 
       - name: Check with Ruff
         uses: astral-sh/ruff-action@v3
+        with:
+          args: --exclude docs,tests
 
       - name: Install package and its dependencies
         run: pip install --editable .[dev,idxml]