fix setup uv step

.gitea/workflows/run-tests.yml

@@ -17,13 +17,10 @@ jobs:
       - name: Checkout code
         uses: actions/checkout@v3
 
-      - name: Set up Python 3.9
-        uses: actions/setup-python@v4
-        with:
-          python-version: '3.9.20'
 
       - name: Install the latest version of uv
         run: |
+          apt update && apt install -y python3-pip
           pip3 install uv
 
       - name: Install dependencies