chore: add test workflow

.github/workflows/test.yml

@@ -0,0 +1,31 @@
+name: release
+
+on:
+  push:
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    name: Build assets
+    steps:
+      - uses: actions/checkout@v4
+      - name: Cache pnpm modules
+        uses: actions/cache@v3
+        with:
+          path: ~/.pnpm-store
+          key: ${{ runner.os }}-${{ hashFiles('**/pnpm-lock.yaml') }}
+          restore-keys: |
+            ${{ runner.os }}-
+      - uses: pnpm/action-setup@v2.4.0
+        with:
+          version: latest
+          run_install: true
+      - name: Use Node.js 16.x
+        uses: actions/setup-node@v4.0.1
+        with:
+          node-version: 16.x
+          cache: "pnpm"
+      - name: Package the extension for Chrome
+        run: pnpm build --zip
+      - name: Package the extension for Firefox
+        run: pnpm build:firefox --zip