Update dependencies from https://github.com/dotnet/source-build-reference-packages build 20240528.2 (dotnet#102990)

Microsoft.SourceBuild.Intermediate.source-build-reference-packages
 From Version 9.0.0-alpha.1.24270.1 -> To Version 9.0.0-alpha.1.24278.2

Co-authored-by: dotnet-maestro[bot] <dotnet-maestro[bot]@users.noreply.github.com>

Author: dotnet-maestro[bot]

eng/Version.Details.xml

@@ -79,9 +79,9 @@
       <SourceBuild RepoName="emsdk" ManagedOnly="true" />
     </Dependency>
     <!-- Intermediate is necessary for source build. -->
-    <Dependency Name="Microsoft.SourceBuild.Intermediate.source-build-reference-packages" Version="9.0.0-alpha.1.24270.1">
+    <Dependency Name="Microsoft.SourceBuild.Intermediate.source-build-reference-packages" Version="9.0.0-alpha.1.24278.2">
       <Uri>https://github.com/dotnet/source-build-reference-packages</Uri>
-      <Sha>0df72d85186994facaefcb4eb832b8c8a8e5ae3d</Sha>
+      <Sha>87ebd07371adfe1d8140889c33da692eb2134f1a</Sha>
       <SourceBuild RepoName="source-build-reference-packages" ManagedOnly="true" />
     </Dependency>
     <!-- Intermediate is necessary for source build. -->