ci: add preview release action (#481)

Author: underfin

.github/workflows/release-continuous.yml

@@ -0,0 +1,38 @@
+name: Preview Publish
+
+on:
+  push:
+    branches:
+      - main
+  pull_request:
+    types: [opened, synchronize, labeled]
+
+permissions: {}
+
+jobs:
+  preview:
+    if: >
+      github.repository == 'vitejs/vite-plugin-react' &&
+      (github.event_name == 'push' ||
+      (github.event_name == 'pull_request' && contains(github.event.pull_request.labels.*.name, 'trigger: preview')))
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Install pnpm
+        uses: pnpm/action-setup@a7487c7e89a18df4991f7f222e4898a00d66ddda # v4.1.0
+
+      - uses: actions/setup-node@v4
+        with:
+          node-version: lts/*
+          cache: pnpm
+
+      - name: Install dependencies
+        run: pnpm install
+
+      - name: Build
+        run: pnpm build
+
+      - name: Publish
+        run: pnpm dlx pkg-pr-new@0.0 publish --pnpm --compact './packages/*' './packages/plugin-react-swc/dist'