Migrate Python workflows to python-repositories-ci runner label.

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

.gitea/workflows/publish.yml

@@ -9,25 +9,24 @@ on:
 
 jobs:
   build-and-publish:
-    runs-on: ubuntu-latest
+    runs-on: python-repositories-ci
     steps:
       - name: Checkout code
         uses: actions/checkout@v4
 
-      - name: Set up Python
-        uses: actions/setup-python@v5
-        with:
-          python-version-file: .python-version
-
-      - name: Install uv
-        run: pip install uv
-
       - name: Update version in pyproject.toml to match tag
+        env:
+          UV_INDEX_GITEA_USERNAME: ci-bot
+          UV_INDEX_GITEA_PASSWORD: ${{ secrets.CI_RUNNER_TOKEN }}
         run: scripts/ci/bump-version.sh --from-tag "${GITHUB_REF##*/}"
 
       - name: Build package
+        env:
+          UV_LINK_MODE: copy
+          UV_INDEX_GITEA_USERNAME: ci-bot
+          UV_INDEX_GITEA_PASSWORD: ${{ secrets.CI_RUNNER_TOKEN }}
         run: |
-          uv sync --no-dev
+          uv sync --no-dev --frozen
           uv build
 
       - name: Publish to Gitea Package Registry