Update F# to latest

Author: KevinRansom

build/Microsoft.DotNet.Cli.DependencyVersions.props

@@ -4,7 +4,7 @@
     <CLI_SharedFrameworkVersion>1.1.2</CLI_SharedFrameworkVersion>
     <CLI_MSBuild_Version>15.3.0-preview-000402-01</CLI_MSBuild_Version>
     <CLI_Roslyn_Version>2.3.0-beta3-61816-04</CLI_Roslyn_Version>
-    <CLI_FSharp_Version>4.2.0-rc-170621-0</CLI_FSharp_Version>
+    <CLI_FSharp_Version>4.2.0-rc-170630-0</CLI_FSharp_Version>
     <CLI_NETSDK_Version>1.1.0-alpha-20170615-3</CLI_NETSDK_Version>
     <CLI_NuGet_Version>4.3.0-preview3-4168</CLI_NuGet_Version>
     <CLI_WEBSDK_Version>1.0.0-alpha-20170516-2-509</CLI_WEBSDK_Version>