docs workflow: use uv

.github/workflows/docs.yml

@@ -14,17 +14,14 @@ on:
 jobs:
   build:
     runs-on: ubuntu-latest
+    env:
+      UV_PYTHON: 3.12
     steps:
       - uses: actions/checkout@v4
-        with:
-          fetch-depth: '0'
-      - uses: actions/setup-python@v5
-        with:
-          python-version: 3.12
-      - run: python3 -m pip install -U pip
-      - run: python3 -m pip install -r docs/requirements.txt
-      - run: python3 -m pip install .
-      - run: mkdocs build --strict -d site
+      - uses: extractions/setup-just@v2
+      - run: curl -LsSf https://astral.sh/uv/install.sh | sh
+      - run: uv sync
+      - run: just mkdocs build --strict -d site
       - uses: actions/upload-pages-artifact@v3
         with:
           path: "site/"