[main] Update Source-Build SDK Diff Tests Baselines (#47787)

Author: Winniexu01

Diff for: src/SourceBuild/content/test/Microsoft.DotNet.SourceBuild.Tests/assets/SdkContentTests/MsftToSbSdkFiles.diff

@@ -45,7 +45,7 @@ index ------------
  ./packs/Microsoft.NETCore.App.Ref/x.y.z/
  ./packs/Microsoft.NETCore.App.Ref/x.y.z/analyzers/
 @@ ------------ @@
- ./sdk-manifests/
+ ./sdk-manifests/x.y.z/
  ./sdk-manifests/x.y.z/
  ./sdk-manifests/x.y.z/
 -./sdk-manifests/x.y.z/