github: Add ruff to ci.yml

Signed-off-by: Tomi Valkeinen <[email protected]>

.github/workflows/ci.yml

@@ -22,15 +22,16 @@ jobs:
       run: |
         python -m pip install --upgrade pip
         pip install -r requirements.txt
-        pip install pylint
+        pip install pylint ruff
 
     - name: Test with unittest
-      run: |
-        python3 -m unittest discover -v tests/
+      run: python3 -m unittest discover -v tests/
 
     - name: Analysing the code with Pyright
       uses: jakebailey/pyright-action@v2
 
     - name: Analysing the code with pylint
-      run: |
-        pylint $(git ls-files '*.py')
+      run: pylint $(git ls-files '*.py')
+
+    - name: Analysing the code with Ruff
+      run: ruff check --output-format=github .