Update dependencies from https://github.com/dotnet/source-build-externals build 20231002.3 (#92936)

Microsoft.SourceBuild.Intermediate.source-build-externals
 From Version 9.0.0-alpha.1.23475.2 -> To Version 9.0.0-alpha.1.23502.3

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

Author: dotnet-maestro[bot]

eng/Version.Details.xml

@@ -100,9 +100,9 @@
       <Sha>3af65e74c8be435668f328c2bf134270b33d4e3a</Sha>
       <SourceBuild RepoName="source-build-reference-packages" ManagedOnly="true" />
     </Dependency>
-    <Dependency Name="Microsoft.SourceBuild.Intermediate.source-build-externals" Version="9.0.0-alpha.1.23475.2">
+    <Dependency Name="Microsoft.SourceBuild.Intermediate.source-build-externals" Version="9.0.0-alpha.1.23502.3">
       <Uri>https://github.com/dotnet/source-build-externals</Uri>
-      <Sha>e45d334fa3fd29018b70c598eced1938c054884d</Sha>
+      <Sha>588fbcbc2a221bc6cea33f12eb73c9117994154e</Sha>
       <SourceBuild RepoName="source-build-externals" ManagedOnly="true" />
     </Dependency>
   </ProductDependencies>