simplify with setup-uv

.github/workflows/pytest.yaml

@@ -18,7 +18,6 @@ jobs:
 
     runs-on: ubuntu-latest
     env:
-      UV_PYTHON: ${{ matrix.python-version }}
       UV_CACHE_DIR: /tmp/.uv-cache
     steps:
       - name: Check out the repository
@@ -27,17 +26,10 @@ jobs:
           show-progress: true
       - name: Install uv
         uses: astral-sh/setup-uv@v7
-      - name: Restore uv cache
-        uses: actions/cache@v4
         with:
-          path: /tmp/.uv-cache
-          key: uv-${{ runner.os }}-${{ hashFiles('uv.lock') }}
-          restore-keys: |
-            uv-${{ runner.os }}-${{ hashFiles('uv.lock') }}
-            uv-${{ runner.os }}
+          python-version: ${{ matrix.python-version }}
+          enable-cache: true
       - name: Install corrlib
         run: uv sync --locked --all-extras --dev
       - name: Run tests
         run: uv run pytest tests
-      - name: Minimize uv cache
-        run: uv cache prune --ci