Downgrade System.Memory to make VS happy (#79523)

Author: dibarbet

eng/Versions.props

@@ -32,16 +32,16 @@
   </PropertyGroup>
   <PropertyGroup Condition="'$(DotNetBuildSourceOnly)' != 'true'">
     <MicrosoftIORedistVersion>6.0.1</MicrosoftIORedistVersion>
-    <SystemBuffersVersion>4.6.1</SystemBuffersVersion>
+    <SystemBuffersVersion>4.6.0</SystemBuffersVersion>
     <!--
     Microsoft.TeamFoundationServer.Client is referencing System.Data.SqlClient causing CG alert
     When it updates its referenced System.Data.SqlClient version this should be removed
     -->
     <SystemDataSqlClientVersion>4.8.6</SystemDataSqlClientVersion>
-    <SystemMemoryVersion>4.6.3</SystemMemoryVersion>
+    <SystemMemoryVersion>4.6.0</SystemMemoryVersion>
     <SystemNumericsVectorsVersion>4.6.1</SystemNumericsVectorsVersion>
-    <SystemRuntimeCompilerServicesUnsafeVersion>6.1.2</SystemRuntimeCompilerServicesUnsafeVersion>
-    <SystemThreadingTasksExtensionsVersion>4.5.4</SystemThreadingTasksExtensionsVersion>
+    <SystemRuntimeCompilerServicesUnsafeVersion>6.1.0</SystemRuntimeCompilerServicesUnsafeVersion>
+    <SystemThreadingTasksExtensionsVersion>4.6.0</SystemThreadingTasksExtensionsVersion>
     <SystemValueTupleVersion>4.5.0</SystemValueTupleVersion>
   </PropertyGroup>
   <!--