ci: add workflow to check previewed package for PR

Author: renovate[bot]

.github/workflows/pr-preview-pkg.yml

@@ -0,0 +1,41 @@
+name: Publish previewed package version on PR 📦
+
+on:
+  pull_request:
+    branches:
+      - '**'
+    paths:
+      - '**/*'
+      - '!website/**/*'
+
+concurrency:
+  group: preview-pkg-pr-${{ github.event.pull_request.number }}
+  cancel-in-progress: true
+
+permissions:
+  contents: read
+
+jobs:
+  publish:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout 🛎️
+        uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5
+        with:
+          fetch-depth: 20
+          fetch-tags: false
+
+      - name: Setup codespace ⚙️
+        uses: ./.github/actions/setup-codespace
+        with:
+          os: ${{ runner.os }}
+
+      - name: Install dependencies
+        run: yarn --immutable
+
+      - name: Build
+        run: yarn build
+
+      - name: Publish
+        run: yarn dlx pkg-pr-new publish