Try Pinning to SourceBuiltArtifacts with portable coreclr bits. (#1535)

* utilize updated artifacts

Co-authored-by: Aditya Aggarwal <aditya.aggarwal@microsoft.com>

Author: crummel

eng/Versions.props

@@ -8,6 +8,6 @@
   <!-- Production Dependencies -->
   <PropertyGroup>
     <PrivateSourceBuildReferencePackagesPackageVersion>1.0.0-beta.20107.1</PrivateSourceBuildReferencePackagesPackageVersion>
-    <PrivateSourceBuiltArtifactsPackageVersion>0.1.0-3.1.101</PrivateSourceBuiltArtifactsPackageVersion>
+    <PrivateSourceBuiltArtifactsPackageVersion>0.1.0-3.1.101.1</PrivateSourceBuiltArtifactsPackageVersion>
   </PropertyGroup>
 </Project>