ci: VCPKG_SYSTEM_LIBRARIES off, cache emsdk, raw jq output

.github/workflows/build.yaml

@@ -11,6 +11,8 @@ env:
 jobs:
   build:
     name: Build (${{ matrix.target }})
+    env:
+      VCPKG_SYSTEM_LIBRARIES: "OFF"
     strategy:
       fail-fast: false
       matrix:
@@ -55,7 +57,7 @@ jobs:
       - name: Acquire Package Version
         shell: bash
         run: |
-          PACKAGE_VERSION=$(cargo metadata --format-version 1 --no-deps | jq '.packages[0].version')
+          PACKAGE_VERSION=$(cargo metadata --format-version 1 --no-deps | jq '.packages[0].version' -r)
           echo "PACKAGE_VERSION=${PACKAGE_VERSION}" >> $GITHUB_ENV
 
       - name: Upload Artifact
@@ -81,6 +83,7 @@ jobs:
         uses: mymindstorm/setup-emsdk@v14
         with:
           version: 3.1.43
+          actions-cache-folder: "emsdk-cache"
 
       - name: Setup Rust (WASM32 Emscripten)
         uses: dtolnay/rust-toolchain@master