Update codeql_unit_tests.yml

Author: mbaluda

.github/workflows/codeql_unit_tests.yml

@@ -47,6 +47,9 @@ jobs:
         uses: actions/setup-python@v4
         with:
           python-version: "3.9"
+          
+      - name: Install Python dependencies
+        run: pip install -r scripts/requirements.txt
 
       - name: Cache CodeQL
         id: cache-codeql