fix: Remove diagnostics tracing output from agent API calls (#3029)

Disable diagnostic tracing in API project

Author: nr-ahemsath

src/Agent/NewRelic.Api.Agent/NewRelic.Api.Agent.csproj

@@ -8,6 +8,7 @@
     <IntermediateOutputPath>$(RootProjectDirectory)\src\_build\$(Platform)-$(Configuration)\$(AssemblyName)\</IntermediateOutputPath>
     <OutputPath>$(RootProjectDirectory)\src\_build\$(Platform)-$(Configuration)\$(AssemblyName)\</OutputPath>
     <Nullable>enable</Nullable>
+    <DisableDiagnosticTracing>true</DisableDiagnosticTracing>
   </PropertyGroup>
 
   <ItemGroup>