ci: add CI to test features in isolation

.github/workflows/ci.yml

@@ -53,3 +53,57 @@ jobs:
         run: |
           cargo test --all
           cargo test --all --all-features
+  test:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        args:
+          - "-F csv"
+          - "-F flatgeobuf"
+          - "-F flatgeobuf_async"
+          - "-F geozero"
+          - "-F ipc_compression"
+          - "-F parquet"
+          - "-F parquet_async"
+          - "-F parquet_compression"
+          - "-F polylabel"
+          - "-F postgis"
+          - "-F rayon"
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          submodules: 'recursive'
+      - uses: dtolnay/rust-toolchain@stable
+      - uses: Swatinem/rust-cache@v2
+      - name: Test
+        run: cargo test ${{ matrix.args }}
+  test-with-external-dependencies:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        args:
+          - "-F gdal"
+          - "-F geos"
+          - "-F proj"
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          submodules: 'recursive'
+      - uses: dtolnay/rust-toolchain@stable
+      - uses: Swatinem/rust-cache@v2
+      - name: Install Pixi
+        run: |
+          curl -fsSL https://pixi.sh/install.sh | bash
+          echo "$HOME/.pixi/bin" >> $GITHUB_PATH
+          echo "GDAL_HOME=$(pwd)/build/.pixi/envs/default" >> "$GITHUB_ENV"
+          echo "LD_LIBRARY_PATH=$(pwd)/build/.pixi/envs/default/lib" >> "$GITHUB_ENV"
+          echo "GEOS_LIB_DIR=$(pwd)/build/.pixi/envs/default/lib" >> "$GITHUB_ENV"
+          # TODO: infer from toml file/lockfile
+          echo "GEOS_VERSION=3.12.1" >> "$GITHUB_ENV"
+          echo "PKG_CONFIG_PATH=$(pwd)/build/.pixi/envs/default/lib/pkgconfig" >> "$GITHUB_ENV"
+      - name: Install build requirements
+        run: |
+          cd build
+          pixi install
+      - name: Test
+        run: cargo test ${{ matrix.args }}