Add prepare step

.github/workflows/publish.yml

@@ -0,0 +1,29 @@
+name: Publish NPM Package
+
+on:
+  push:
+    branches: ['main']
+  # drop this before merging
+  pull_request:
+    types: [opened, synchronize]
+
+concurrency: ${{ github.workflow }}-${{ github.ref }}
+
+jobs:
+  release:
+    name: Release
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v3
+
+      - name: Setup
+        uses: ./.github/actions/setup
+
+      - name: Install Dependencies
+        run: yarn
+
+      - name: Prepare release
+        run: |
+          cd modules/react-native-shopify-checkout-kit
+          npm pack --dry-run