Update node.js.yml

Attempted fix for CI/CD not running for PRs

.github/workflows/node.js.yml

@@ -3,8 +3,15 @@
 
 name: Node.js CI
 
-# Triggers the workflow on push or pull request events
-on: [push, pull_request]
+on:
+  # Trigger the workflow on push or pull request,
+  push:
+    branches:
+      # Only on the main branch
+      - main
+  pull_request:
+    # These types of PRs
+    types: [assigned, opened, synchronize, reopened]
 
 jobs:
   build: