Removed tests folder from Ruff

Author: mickaelandrieu

.github/workflows/tests.yml

@@ -29,8 +29,8 @@ jobs:
     
     - name: Run Ruff
       run: |
-        ruff check .
-        ruff format --check .
+        ruff check slidio/
+        ruff format --check slidio/
     
     - name: Run tests
       run: |