s-b-ref-packs: rectify the version

Author: adaggarwal

eng/Version.Details.xml

@@ -7,7 +7,7 @@
     </Dependency>
     <Dependency Name="Private.SourceBuild.ReferencePackages" Version="1.0.0-beta.19554.1">
       <Uri>https://github.com/dotnet/source-build-reference-packages</Uri>
-      <Sha>3ac3a0ba9492976dae6942f218f1335624ee75cb</Sha>
+      <Sha>d570630310386977b48ff9a5a53df4118374fdbb</Sha>
     </Dependency>
   </ToolsetDependencies>
   <ProductDependencies>