Update main.yml

.github/workflows/main.yml

@@ -1,13 +1,24 @@
 name: "emsdk"
 on: workflow_dispatch
 
+env:
+  EM_VERSION: 3.1.65
+  EM_CACHE_FOLDER: 'emsdk-cache'
+
 jobs:
-  build:
+  test:
     runs-on: ubuntu-latest
     steps:
+      - uses: actions/checkout@v4
+      - name: Setup cache
+        id: cache-system-libraries
+        uses: actions/cache@v4
+        with:
+          path: ${{env.EM_CACHE_FOLDER}}
+          key: ${{env.EM_VERSION}}-${{ runner.os }}
       - uses: mymindstorm/setup-emsdk@v14
-
-      - name: Verify
-        run: emcc -v
+        with:
+          version: ${{env.EM_VERSION}}
+          actions-cache-folder: ${{env.EM_CACHE_FOLDER}}
       - name: Make release
         run: make emscripten_release