Add linting tests

.github/workflows/test.yml

@@ -22,8 +22,11 @@ jobs:
       run: |
         python -m pip install --upgrade pip
         pip install -r requirements.txt
-        pip install pytest
+        pip install pytest ruff
         pip install -e .
 
+    - name: Run linting tests on files in src
+      run: ruff src
+
     - name: Run tests
       run: pytest