Fix CI.

.github/workflows/ci.yml

@@ -16,11 +16,15 @@ jobs:
       - run: pnpm run check
   action:
     name: 'Action'
-    runs-on: ubuntu-latest
+    runs-on: ${{ matrix.os }}
+    strategy:
+      matrix:
+        os: [ubuntu-latest, macos-latest, windows-latest]
+      fail-fast: false
     steps:
       - uses: actions/checkout@v3
       - uses: actions/setup-node@v3
       - run: npm install -g pnpm
       - run: pnpm install
       - run: pnpm run build
-      - run: node dist/index.js
+      - uses: ./ # self