Update dependencies from https://github.com/dotnet/source-build-reference-packages build 20250131.5

Microsoft.SourceBuild.Intermediate.source-build-reference-packages
 From Version 8.0.0-alpha.1.25067.1 -> To Version 8.0.0-alpha.1.25081.5

Author: dotnet-maestro[bot]

eng/Version.Details.xml

@@ -2,9 +2,9 @@
 <Dependencies>
   <ProductDependencies>
     <!-- Intermediate is necessary for source build. -->
-    <Dependency Name="Microsoft.SourceBuild.Intermediate.source-build-reference-packages" Version="8.0.0-alpha.1.25067.1">
+    <Dependency Name="Microsoft.SourceBuild.Intermediate.source-build-reference-packages" Version="8.0.0-alpha.1.25081.5">
       <Uri>https://github.com/dotnet/source-build-reference-packages</Uri>
-      <Sha>f896ca2ca61f482526e25ea092b11eadaa682c68</Sha>
+      <Sha>d73fc552386797322e84fa9b2ef5eaa5369de83c</Sha>
       <SourceBuild RepoName="source-build-reference-packages" ManagedOnly="true" />
     </Dependency>
   </ProductDependencies>