[6.0] All sdk diff tests are failing

[Winniexu01]

Failing build (internal Microsoft link)

 --- a/tarball/test/Microsoft.DotNet.SourceBuild.SmokeTests/bin/Release/net6.0/assets/baselines/MsftToSbSdk.diff
 +++ b/tarball/test/Microsoft.DotNet.SourceBuild.SmokeTests/bin/Release/net6.0/logs/UpdatedMsftToSbSdk.diff
 @@ -14,7 +14,20 @@ index ------------
   ./packs/Microsoft.AspNetCore.App.Ref/
   ./packs/Microsoft.AspNetCore.App.Ref/x.y.z/
  @@ ------------ @@
 + ./packs/Microsoft.AspNetCore.App.Ref/x.y.z/ref/netx.y/Microsoft.JSInterop.xml
 + ./packs/Microsoft.AspNetCore.App.Ref/x.y.z/ref/netx.y/Microsoft.Net.Http.Headers.dll
 + ./packs/Microsoft.AspNetCore.App.Ref/x.y.z/ref/netx.y/Microsoft.Net.Http.Headers.xml
 ++./packs/Microsoft.AspNetCore.App.Ref/x.y.z/ref/netx.y/System.Diagnostics.DiagnosticSource.dll
 ++./packs/Microsoft.AspNetCore.App.Ref/x.y.z/ref/netx.y/System.Diagnostics.DiagnosticSource.xml
 + ./packs/Microsoft.AspNetCore.App.Ref/x.y.z/ref/netx.y/System.Diagnostics.EventLog.dll
 + ./packs/Microsoft.AspNetCore.App.Ref/x.y.z/ref/netx.y/System.Diagnostics.EventLog.xml
 ++./packs/Microsoft.AspNetCore.App.Ref/x.y.z/ref/netx.y/System.Formats.Asn1.dll
 ++./packs/Microsoft.AspNetCore.App.Ref/x.y.z/ref/netx.y/System.Formats.Asn1.xml
 + ./packs/Microsoft.AspNetCore.App.Ref/x.y.z/ref/netx.y/System.IO.Pipelines.dll
   ./packs/Microsoft.AspNetCore.App.Ref/x.y.z/ref/netx.y/System.IO.Pipelines.xml
 ++./packs/Microsoft.AspNetCore.App.Ref/x.y.z/ref/netx.y/System.Runtime.CompilerServices.Unsafe.dll
 ++./packs/Microsoft.AspNetCore.App.Ref/x.y.z/ref/netx.y/System.Security.AccessControl.dll
 ++./packs/Microsoft.AspNetCore.App.Ref/x.y.z/ref/netx.y/System.Security.AccessControl.xml
   ./packs/Microsoft.AspNetCore.App.Ref/x.y.z/ref/netx.y/System.Security.Cryptography.Xml.dll
   ./packs/Microsoft.AspNetCore.App.Ref/x.y.z/ref/netx.y/System.Security.Cryptography.Xml.xml
  -./packs/Microsoft.NETCore.App.Host.portable-rid/
 @@ -29,6 +42,10 @@ index ------------
  -./packs/Microsoft.NETCore.App.Host.portable-rid/x.y.z/runtimes/portable-rid/native/libnethost.so
  -./packs/Microsoft.NETCore.App.Host.portable-rid/x.y.z/runtimes/portable-rid/native/nethost.h
  -./packs/Microsoft.NETCore.App.Host.portable-rid/x.y.z/runtimes/portable-rid/native/singlefilehost
 ++./packs/Microsoft.AspNetCore.App.Ref/x.y.z/ref/netx.y/System.Text.Encodings.Web.dll
 ++./packs/Microsoft.AspNetCore.App.Ref/x.y.z/ref/netx.y/System.Text.Encodings.Web.xml
 ++./packs/Microsoft.AspNetCore.App.Ref/x.y.z/ref/netx.y/System.Text.Json.dll
 ++./packs/Microsoft.AspNetCore.App.Ref/x.y.z/ref/netx.y/System.Text.Json.xml
  +./packs/Microsoft.NETCore.App.Host.banana-rid/
  +./packs/Microsoft.NETCore.App.Host.banana-rid/x.y.z/
  +./packs/Microsoft.NETCore.App.Host.banana-rid/x.y.z/runtimes/

[ellahathaway]

PR merged, closing