Skip component governance in public builds (#43470)

* Skip component governance in public builds

* Update default-build.yml

Author: wtgodbe

.azure/pipelines/jobs/default-build.yml

@@ -100,6 +100,8 @@ jobs:
     enableTelemetry: true
     helixRepo: dotnet/aspnetcore
     helixType: build.product/
+    ${{ if ne(variables['System.TeamProject'], 'internal') }}:
+      skipComponentGovernanceDetection: true
     workspace:
       clean: all
     # Map friendly OS names to the right queue