ci: add pkg-pr-new workflow

.github/workflows/pkg-pr-new.yaml

@@ -0,0 +1,43 @@
+name: pkg-pr-new
+
+on:
+  push:
+    branches:
+      - "**"
+      - "!main"
+    tags-ignore:
+      - "v*"
+  pull_request:
+    types: [ready_for_review]
+    branches-ignore:
+      - release
+
+jobs:
+  publish:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout 🛎️
+        uses: actions/checkout@v4
+        with:
+          persist-credentials: false
+
+      - name: pnpm 🧰
+        uses: pnpm/action-setup@v3
+        with:
+          version: 9.x
+
+      - name: Node 🧰
+        uses: actions/setup-node@v4
+        with:
+          node-version: 22.x
+
+      - name: Install 📦
+        run: pnpm install --frozen-lockfile
+
+      - name: Build elements 🛠
+        run: pnpm build:elements
+
+      - name: Publish 🚀 pkg.pr.new
+        run: |
+          npx pkg-pr-new publish './packages/app-elements' --no-template