ci: add package size reports (#236)

* ci: add package size reports

* chore: update deps

.github/workflows/size-check.yml

@@ -0,0 +1,35 @@
+name: Package Size Report
+
+on:
+  pull_request:
+    branches:
+      - main
+
+jobs:
+  pkg-size-report:
+    name: Package Size Report
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Setup Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: '18.x'
+          cache: 'npm'
+          cache-dependency-path: '**/package-lock.json'
+      - name: Install Deno
+        uses: denoland/setup-deno@v1
+        with:
+          # Should match the `DENO_VERSION_RANGE` from https://github.com/netlify/edge-bundler/blob/main/node/bridge.ts#L17
+          deno-version: v1.37.0
+      - run: npm ci
+
+      - name: Package size report
+        uses: pkg-size/action@v1
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        with:
+          display-size: uncompressed, gzip