Update dependencies from https://github.com/dotnet/source-build-externals build 20230512.1 (#48237)

[main] Update dependencies from dotnet/source-build-externals

Author: dotnet-maestro[bot]

eng/Version.Details.xml

@@ -181,9 +181,9 @@
       <Uri>https://github.com/dotnet/runtime</Uri>
       <Sha>888bac304442e1a6883cfb922d21a74df910112d</Sha>
     </Dependency>
-    <Dependency Name="Microsoft.SourceBuild.Intermediate.source-build-externals" Version="8.0.0-alpha.1.23251.2">
+    <Dependency Name="Microsoft.SourceBuild.Intermediate.source-build-externals" Version="8.0.0-alpha.1.23262.1">
       <Uri>https://github.com/dotnet/source-build-externals</Uri>
-      <Sha>7133c4310e0df9b425455a54bcd6816f46b79465</Sha>
+      <Sha>a1460948fd0a4ab66b885c1575b085af70139e9a</Sha>
       <SourceBuild RepoName="source-build-externals" ManagedOnly="true" />
     </Dependency>
     <Dependency Name="System.Configuration.ConfigurationManager" Version="8.0.0-preview.5.23260.3">

eng/Versions.props

@@ -152,7 +152,7 @@
     <!-- Packages from dotnet/source-link -->
     <MicrosoftSourceLinkGitHubVersion>8.0.0-beta.23218.3</MicrosoftSourceLinkGitHubVersion>
     <!-- Packages from dotnet/source-build-externals -->
-    <MicrosoftSourceBuildIntermediatesourcebuildexternalsVersion>8.0.0-alpha.1.23251.2</MicrosoftSourceBuildIntermediatesourcebuildexternalsVersion>
+    <MicrosoftSourceBuildIntermediatesourcebuildexternalsVersion>8.0.0-alpha.1.23262.1</MicrosoftSourceBuildIntermediatesourcebuildexternalsVersion>
     <!-- Packages from dotnet/source-build-reference-packages -->
     <MicrosoftSourceBuildIntermediatesourcebuildreferencepackagesVersion>8.0.0-alpha.1.23262.1</MicrosoftSourceBuildIntermediatesourcebuildreferencepackagesVersion>
     <!-- Packages from dotnet/xdt -->