chore: fix build workflow

.github/workflows/build.yml

@@ -1,19 +1,20 @@
 name: Build
 on:
-  push:
+  - push
+  - pull_request
 jobs:
   build:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        node-version: [16.x, 18.x]
+        node-version: [18.x, 20.x]
     steps:
-    - uses: actions/checkout@v3
-    - uses: pnpm/action-setup@v2
+    - uses: actions/checkout@v4
+    - uses: pnpm/action-setup@v4
       with:
-        version: 8
+        version: 9
     - name: Use Node.js ${{ matrix.node-version }}
-      uses: actions/setup-node@v3
+      uses: actions/setup-node@v4
       with:
         node-version: ${{ matrix.node-version }}
         cache: 'pnpm'