Revert workflows to ubuntu-latest until CI image is seeded.

Co-authored-by: Cursor <[email protected]>

.gitea/workflows/code-quality.yml

@@ -8,17 +8,23 @@ on:
 
 jobs:
   code-quality:
-    runs-on: python-repositories-ci
+    runs-on: ubuntu-latest
     steps:
       - name: Checkout code
         uses: actions/checkout@v4
 
-      - name: Sync dependencies
+      - name: Set up Python
+        uses: actions/setup-python@v5
+        with:
+          python-version-file: .python-version
+
+      - name: Install uv
+        run: pip install uv
+
+      - name: Install dependencies
         env:
           UV_LINK_MODE: copy
-          UV_INDEX_GITEA_USERNAME: ci-bot
-          UV_INDEX_GITEA_PASSWORD: ${{ secrets.CI_RUNNER_TOKEN }}
-        run: uv sync --all-extras --frozen
+        run: uv sync --all-extras
 
       - name: Type check with mypy
         run: uv run mypy .