build(python): migrate to uv (#5222)

.github/workflows/localize.yml

@@ -14,6 +14,7 @@ on:
 
 env:
   FILE: ./locale/sunshine.po
+  PYTHON_VERSION: '3.14'
 
 jobs:
   localize:
@@ -28,12 +29,19 @@ jobs:
       - name: Install Python
         uses: actions/setup-python@a309ff8b426b58ec0e2a45f0f869d46889d02405  # v6.2.0
         with:
-          python-version: '3.14'
+          python-version: ${{ env.PYTHON_VERSION }}
 
-      - name: Set up Python Dependencies
+      - name: Setup uv
+        uses: astral-sh/setup-uv@08807647e7069bb48b6ef5acd8ec9567f424441b  # v8.1.0
+        with:
+          enable-cache: true
+
+      - name: Sync Python tools
         run: |
-          python -m pip install --upgrade pip setuptools
-          python -m pip install ".[locale]"
+          uv sync --locked --only-group locale \
+            --python "${PYTHON_VERSION}" \
+            --no-python-downloads \
+            --no-install-project
 
       - name: Set up xgettext
         run: |
@@ -54,7 +62,7 @@ jobs:
           echo "NEW_FILE=${new_file}" >> "${GITHUB_ENV}"
 
           # extract the new strings
-          python ./scripts/_locale.py --extract
+          uv run --locked --no-sync python ./scripts/_locale.py --extract
 
       - name: git diff
         if: env.NEW_FILE == 'false'