updated yaml files

build/botframework-wechat-dotnet-daily.yml

@@ -4,6 +4,7 @@ variables:
   BuildPlatform: Any CPU
   CoverallsToken: define this in Azure
   Parameters.solution: libraries/csharp_dotnetcore/csharp_dotnetcore.sln
+  MSBuildArguments: -p:PublishRepositoryUrl=true -p:IncludeSymbols=true -p:SymbolPackageFormat=snupkg
   ReleasePackageVersion: 4.0.0-preview-$(Build.BuildNumber)
 pool:
   name: Hosted Windows 2019 with VS2019

build/dotnet-build-steps.yml

@@ -23,7 +23,7 @@ steps:
   inputs:
     solution: '$(Parameters.solution)'
     vsVersion: "latest"
-    msbuildArgs: '-p:SignAssembly=true -p:delaySign=true'
+    msbuildArgs: '$(MSBuildArguments)'
     platform: '$(BuildPlatform)'
     configuration: '$(BuildConfiguration)'