windows only, add library cache, tune build artifact

.github/workflows/build.yml

@@ -17,12 +17,22 @@ jobs:
         unityVersion:
           - 2022.3.42f1
         targetPlatform:
-          - WebGL
+          # - WebGL
+          # - StandaloneLinux64
+          - StandaloneWindows64
+          # - StandaloneOSX
 
     steps:
       - name: Checkout repository
         uses: actions/checkout@v4
 
+      - uses: actions/cache@v3
+        with:
+          path: ./Galagan/Library
+          key: ${{ runner.os }}-Library-${{ hashFiles('./Galagan/ProjectSettings/ProjectSettings.asset') }}
+          restore-keys: |
+            ${{ runner.os }}-Library-
+
       - name: Build Unity Project
         uses: game-ci/unity-builder@v4
         env:
@@ -37,5 +47,5 @@ jobs:
       - name: Upload artifact
         uses: actions/upload-artifact@v4
         with:
-          name: Build
+          name: galagan-${{ matrix.targetPlatform }}
-          path: build
+          path: build/${{ matrix.targetPlatform }}