Update dependencies from https://github.com/dotnet/source-build-refer…

…ence-packages build 20230828.2 (#9182)

Microsoft.SourceBuild.Intermediate.source-build-reference-packages
 From Version 8.0.0-alpha.1.23424.1 -> To Version 8.0.0-alpha.1.23428.2

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

eng/Version.Details.xml

@@ -1,9 +1,9 @@
 <?xml version="1.0" encoding="utf-8"?>
 <Dependencies>
   <ProductDependencies>
-    <Dependency Name="Microsoft.SourceBuild.Intermediate.source-build-reference-packages" Version="8.0.0-alpha.1.23424.1">
+    <Dependency Name="Microsoft.SourceBuild.Intermediate.source-build-reference-packages" Version="8.0.0-alpha.1.23428.2">
       <Uri>https://github.com/dotnet/source-build-reference-packages</Uri>
-      <Sha>93c23409e630c4f267234540b0e3557b76a53ef4</Sha>
+      <Sha>26ce96327dd346534926c4551f8b8d62a6fc724f</Sha>
       <SourceBuild RepoName="source-build-reference-packages" ManagedOnly="true" />
     </Dependency>
     <!-- Necessary for source-build. This allows the live version of the package to be used by source-build. -->