Update corefx dependencies (#46538)

* Update System.Runtime.CompilerServices.Unsafe to 4.7.1

This brings it up to the latest stable version on nuget.org so we can keep updating other dependencies in VS without fear that they need a dependency that's newer than what VS ships.

* Update System.Threading.Tasks.Extensions to 4.5.4

This matches a VS update recently made: https://devdiv.visualstudio.com/DevDiv/_git/VS/pullrequest/265216?path=%2Fsrc%2FSetupPackages%2FCoreIde%2FMinShell%2Fcore%2Ffiles.swr&_a=commits

* Update System.Threading.Tasks.Dataflow and Microsoft.Bcl.AsyncInterfaces

These bring up more corefx assemblies to match the version inserted to VS as of https://devdiv.visualstudio.com/DevDiv/_git/VS/pullrequest/265216?path=%2Fsrc%2FSetupPackages%2FCoreIde%2FMinShell%2Fcore%2Ffiles.swr&_a=commits.

* Skip CommandLineRunnerTests.TestReferenceDirective
Co-authored-by: NRikki Gibson <rikkigibson@gmail.com>

eng/Versions.props

@@ -206,14 +206,14 @@
     <SystemIOPipesAccessControlVersion>4.5.1</SystemIOPipesAccessControlVersion>
     <SystemMemoryVersion>4.5.4</SystemMemoryVersion>
     <SystemResourcesExtensionsVersion>4.7.1</SystemResourcesExtensionsVersion>
-    <SystemRuntimeCompilerServicesUnsafeVersion>4.7.0</SystemRuntimeCompilerServicesUnsafeVersion>
+    <SystemRuntimeCompilerServicesUnsafeVersion>4.7.1</SystemRuntimeCompilerServicesUnsafeVersion>
     <SystemRuntimeLoaderVersion>4.3.0</SystemRuntimeLoaderVersion>
     <SystemTextEncodingCodePagesVersion>4.5.1</SystemTextEncodingCodePagesVersion>
     <SystemTextEncodingExtensionsVersion>4.3.0</SystemTextEncodingExtensionsVersion>
-    <SystemThreadingTasksDataflowVersion>4.9.0</SystemThreadingTasksDataflowVersion>
+    <SystemThreadingTasksDataflowVersion>4.11.1</SystemThreadingTasksDataflowVersion>
     <!-- We need System.ValueTuple assembly version at least 4.0.3.0 on net47 to make F5 work against Dev15 - see https://github.com/dotnet/roslyn/issues/29705 -->
     <SystemValueTupleVersion>4.5.0</SystemValueTupleVersion>
-    <SystemThreadingTasksExtensionsVersion>4.5.3</SystemThreadingTasksExtensionsVersion>
+    <SystemThreadingTasksExtensionsVersion>4.5.4</SystemThreadingTasksExtensionsVersion>
     <SQLitePCLRawbundle_greenVersion>1.1.2</SQLitePCLRawbundle_greenVersion>
     <UIAComWrapperVersion>1.1.0.14</UIAComWrapperVersion>
     <MicrosoftVSSDKBuildToolsVersion>16.7.2</MicrosoftVSSDKBuildToolsVersion>
@@ -255,7 +255,7 @@
     <StreamJsonRpcVersion>2.4.34</StreamJsonRpcVersion>
     <SystemCollectionsImmutableVersion>5.0.0-preview.8.20371.14</SystemCollectionsImmutableVersion>
     <SystemReflectionMetadataVersion>5.0.0-preview.8.20371.14</SystemReflectionMetadataVersion>
-    <MicrosoftBclAsyncInterfacesVersion>1.1.0</MicrosoftBclAsyncInterfacesVersion>
+    <MicrosoftBclAsyncInterfacesVersion>1.1.1</MicrosoftBclAsyncInterfacesVersion>
   </PropertyGroup>
   <PropertyGroup>
     <UsingToolPdbConverter>true</UsingToolPdbConverter>

src/Scripting/VisualBasicTest/CommandLineRunnerTests.vb

@@ -77,7 +77,7 @@ Namespace Microsoft.CodeAnalysis.VisualBasic.Scripting.UnitTests
 >", runner.Console.Out.ToString())
         End Sub
 
-        <Fact()>
+        <Fact(Skip:="https://github.com/dotnet/roslyn/issues/46720")>
         Public Sub TestReferenceDirective()
             Dim file1 = Temp.CreateFile("1.dll").WriteAllBytes(TestCompilationFactory.CreateVisualBasicCompilationWithCorlib("
 public Class C1