Update dependencies from https://github.com/dotnet/source-build-reference-packages build 20250402.2 (#61296)

Microsoft.SourceBuild.Intermediate.source-build-reference-packages
 From Version 10.0.618101 -> To Version 10.0.620202

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

Author: dotnet-maestro[bot]

eng/Version.Details.xml

@@ -351,9 +351,9 @@
       <Sha>22bcd52ea9888ebeb1daf9bc6a4c0924fe609a51</Sha>
       <SourceBuild RepoName="xdt" ManagedOnly="true" />
     </Dependency>
-    <Dependency Name="Microsoft.SourceBuild.Intermediate.source-build-reference-packages" Version="10.0.618101">
+    <Dependency Name="Microsoft.SourceBuild.Intermediate.source-build-reference-packages" Version="10.0.620202">
       <Uri>https://github.com/dotnet/source-build-reference-packages</Uri>
-      <Sha>f216638d3d6324b6ec140f826b92a7f853dbdfb7</Sha>
+      <Sha>8066d7d7a0829b2c7f7de93fef003d9ce50f7fba</Sha>
       <SourceBuild RepoName="source-build-reference-packages" ManagedOnly="true" />
     </Dependency>
     <!-- Not updated automatically -->

eng/Versions.props

@@ -176,7 +176,7 @@
     <!-- Packages from dotnet/source-build-externals -->
     <MicrosoftSourceBuildIntermediatesourcebuildexternalsVersion>10.0.616001</MicrosoftSourceBuildIntermediatesourcebuildexternalsVersion>
     <!-- Packages from dotnet/source-build-reference-packages -->
-    <MicrosoftSourceBuildIntermediatesourcebuildreferencepackagesVersion>10.0.618101</MicrosoftSourceBuildIntermediatesourcebuildreferencepackagesVersion>
+    <MicrosoftSourceBuildIntermediatesourcebuildreferencepackagesVersion>10.0.620202</MicrosoftSourceBuildIntermediatesourcebuildreferencepackagesVersion>
     <!-- Packages from dotnet/symreader -->
     <MicrosoftSourceBuildIntermediatesymreaderVersion>2.2.0-beta.25177.1</MicrosoftSourceBuildIntermediatesymreaderVersion>
     <!-- Packages from dotnet/xdt -->