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

…nals build 20241015.2 (#8464)

Microsoft.SourceBuild.Intermediate.source-build-externals
 From Version 9.0.0-alpha.1.24510.1 -> To Version 9.0.0-alpha.1.24515.2

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

eng/Version.Details.xml

@@ -2,9 +2,9 @@
 <Dependencies>
   <ProductDependencies>
     <!-- Intermediate is necessary for source build. -->
-    <Dependency Name="Microsoft.SourceBuild.Intermediate.source-build-externals" Version="9.0.0-alpha.1.24510.1">
+    <Dependency Name="Microsoft.SourceBuild.Intermediate.source-build-externals" Version="9.0.0-alpha.1.24515.2">
       <Uri>https://github.com/dotnet/source-build-externals</Uri>
-      <Sha>b11ed370b79aa475535a5803856b7c7d0977235e</Sha>
+      <Sha>659bf534d9fbf673493b821be99df12032277549</Sha>
       <SourceBuild RepoName="source-build-externals" ManagedOnly="true" />
     </Dependency>
     <!-- Intermediate is necessary for source build. -->