fix pre-commit errors

Author: laurasgkadri98

.github/workflows/ci_cd.yml

@@ -39,12 +39,12 @@ jobs:
         uses: actions/setup-python@v2
         with:
           python-version: ${{ matrix.python-version }}
-      
+
       - name: Install dependencies
         run: |
           python -m pip install --upgrade pip
           pip install -r requirements.txt
-          
+
       - name: Testing (Linux)
         uses: ansys/actions/tests-pytest@v6
         timeout-minutes: 12