unit tests github action update

Author: Dragos0000

.github/workflows/unit-tests.yml

@@ -20,9 +20,9 @@ jobs:
         with:
           fetch-depth: 0  # Shallow clones should be disabled for a better relevancy of analysis
       - name: Set up Python ${{ matrix.python-version }}
-        uses: actions/setup-python@v2
+        uses: actions/setup-python@v4
         with:
-          python-version: 3.10
+          python-version: '3.10'
       - name: Install dependencies
         run: |
           sudo apt-get update