fix: add build step

.github/workflows/main.yml

@@ -0,0 +1,19 @@
+name: Build and Run Action
+on:
+  push:
+    branches: [ main ]
+jobs:
+  build-and-run:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+      - name: Use Node.js
+        uses: actions/setup-node@v3
+        with:
+          node-version: '16'
+      - name: Install dependencies
+        run: npm ci
+      - name: Build
+        run: npm run build
+      - name: Run your action
+        uses: ./