fixed workflow

.gitea/workflows/tests.yaml

@@ -10,7 +10,7 @@ jobs:
         uses: actions/checkout@v4
       - name: Set up Python
         uses: actions/setup-python@v5
+      - name: Installing dependencies
+        run: python -m pip install unittest
       - name: Test with unittest
-        run: |
-          pip install unittest
-          python -m unittest
+        run: python -m unittest