remove empty lines

.github/workflows/unit-tests.yaml

@@ -9,25 +9,20 @@ on:
 jobs:
   unit-tests:
     runs-on: ubuntu-latest
-
     steps:
     - uses: actions/checkout@v3
     - name: Set up Python
       uses: actions/setup-python@v4
       with:
         python-version: '3.8' 
-
      - name: Create virtual environment
       run: python3 -m venv venv
-
     - name: Activate virtual environment
       shell: bash
       run: source venv/bin/activate 
-
     - name: Install dependencies
       run: |
         python3 -m pip install --upgrade pip
-
         pip install gcs-torch-dataflux
     - name: Run tests
       run: |