Remove no longer supported ruff option

Author: cdrini

.github/workflows/test_python.yml

@@ -12,7 +12,7 @@ jobs:
     - name: Checkout
       uses: actions/checkout@v4
     - run: pip install ruff
-    - run: ruff --output-format=github .
+    - run: ruff .
 
   test_python:
     strategy: