Update build.yml

Author: gulshan178

.github/workflows/build.yml

@@ -4,13 +4,11 @@ on:
     branches:
       - main
   pull_request:
-    branches:
-      - main
     types: [opened, synchronize, reopened]
 jobs:
   build:
     name: Build and analyze
-    runs-on: [on-prem-vm,gpx]
+    runs-on: aws-ec2
     steps:
       - uses: actions/checkout@v4
         with: