fix tests in GHA

.github/workflows/ci.yml

@@ -94,6 +94,10 @@ jobs:
         uses: actions/setup-python@v5
         with:
           python-version: "3.12"
+      - name: Install dependencies
+        run: |
+          python -m pip install --upgrade pip
+          pip install -r requirements.txt
       - name: Python tests
         run: |
           python -m unittest tests/*.py