Setup verify in CI

Author: zoontek

.github/workflows/verify.yml

@@ -0,0 +1,21 @@
+name: Verify
+
+on:
+  push:
+    branches: [main]
+  pull_request:
+    branches: [main]
+
+jobs:
+  prepack:
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v3
+
+      - uses: actions/setup-node@v3
+        with:
+          node-version: lts/*
+
+      - run: yarn install --frozen-lockfile
+      - run: yarn prepack