Merge in 'release/2.1' changes

Author: dotnet-bot

build/dependencies.props

@@ -4,7 +4,7 @@
     <!-- MicrosoftNETCoreApp21PackageVersion is assigned at the bottom so it can automatically pick up MicrosoftNETCoreAppPackageVersion in an orchestrated build. -->
     <MicrosoftNETCoreAppPackageVersion>2.1.12</MicrosoftNETCoreAppPackageVersion>
     <MicrosoftNETCoreDotNetAppHostPackageVersion>2.1.12</MicrosoftNETCoreDotNetAppHostPackageVersion>
-
+    <SystemSecurityCryptographyCngPackageVersion>4.5.0</SystemSecurityCryptographyCngPackageVersion>
   </PropertyGroup>
 
   <Import Project="$(DotNetPackageVersionPropsPath)" Condition="'$(DotNetPackageVersionPropsPath)' != ''" />
@@ -199,7 +199,6 @@
     <SystemReflectionMetadataPackageVersion>1.6.0</SystemReflectionMetadataPackageVersion>
     <SystemRuntimeCompilerServicesUnsafePackageVersion>4.5.2</SystemRuntimeCompilerServicesUnsafePackageVersion>
     <SystemRuntimeInteropServicesRuntimeInformationPackageVersion>4.3.0</SystemRuntimeInteropServicesRuntimeInformationPackageVersion>
-    <SystemSecurityCryptographyCngPackageVersion>4.5.0</SystemSecurityCryptographyCngPackageVersion>
     <SystemSecurityCryptographyXmlPackageVersion>4.5.0</SystemSecurityCryptographyXmlPackageVersion>
     <SystemSecurityPermissionsPackageVersion>4.5.0</SystemSecurityPermissionsPackageVersion>
     <SystemSecurityPrincipalWindowsPackageVersion>4.5.1</SystemSecurityPrincipalWindowsPackageVersion>