Fix clone command

.gitea/workflows/tests.yaml

@@ -7,9 +7,6 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - run: pipx install poetry
-      - name: Check out repository code
-        uses: actions/checkout@v4
-        with:
-          github-server-url: "https://www.alexselimov.com/git"
+      - run: git clone -b {{ gitea.ref }} https://www.alexselimov.com/git/aselimov/code_rag.git && cd code_rag
       - run: echo $(ls)
       - run: /root/.local/bin/poetry install && /root/.local/bin/poetry run pytest -v