chore: use uv for docs action

.github/workflows/docs.yml

@@ -18,6 +18,8 @@ jobs:
   build:
     if: github.repository_owner == 'xonsh'
     runs-on: ubuntu-latest
+    env:
+      UV_CACHE_DIR: .cache/uv
     name: Xonsh docs to gh-pages
     steps:
       - uses: actions/checkout@v4
@@ -27,10 +29,9 @@ jobs:
           python-version: "3.10"
       - uses: yezz123/setup-uv@v4
       - name: set current week
-        uses: mathiasvr/command-output@v2.0.0
-        id: current_week
         with:
-          run: python -c "from datetime import date; print(date.today().isocalendar().week)"
+          run: echo WEEK=$(date +%V) >>$GITHUB_ENV
+          shell: bash
       - name: Cache uv pip for a week
         id: cache-uv
         uses: actions/cache@v4

.github/workflows/test.yml

@@ -47,16 +47,15 @@ jobs:
           python-version: ${{ matrix.python-version }}
       - uses: yezz123/setup-uv@v4
       - name: set current week
-        uses: mathiasvr/command-output@v2.0.0
-        id: current_week
         with:
-         run: python -c "from datetime import date; print(date.today().isocalendar().week)"
+         run: echo WEEK=$(date +%V) >>$GITHUB_ENV
+         shell: bash
       - name: Cache uv pip for a week
         id: cache-uv
         uses: actions/cache@v4
         with:
           path: ${{ env.UV_CACHE_DIR }}
-          key: ${{ runner.os }}-uv-${{ hashFiles('pyproject.toml') }}-${{ steps.current_week.outputs.stdout }}
+          key: ${{ runner.os }}-uv-${{ hashFiles('pyproject.toml') }}-${{ env.WEEK }}
           restore-keys: ${{ runner.os }}-uv-
       - name: Install dependencies
         run: uv pip install --system -e ".[test]"