Only require build in pull_requests

Author: robmen

.github/workflows/build.yml

@@ -1,6 +1,6 @@
 name: Build Docs
 
-on: [push, pull_request, workflow_dispatch]
+on: [pull_request, workflow_dispatch]
 
 jobs:
   build:
@@ -20,4 +20,4 @@ jobs:
     - name: Install
       run: pnpm install
     - name: Build
-      run: pnpm build
+      run: pnpm build