Update maintenance-packages versions (#114281)

* Update maintenance-packages versions

* Update dependencies from https://github.com/dotnet/source-build-reference-packages build 20250404.2

Microsoft.SourceBuild.Intermediate.source-build-reference-packages
 From Version 10.0.617601 -> To Version 10.0.620402

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Co-authored-by: dotnet-maestro[bot] <dotnet-maestro[bot]@users.noreply.github.com>

Author: carlossanlop

eng/Versions.props

@@ -114,10 +114,10 @@
     <MicrosoftBclHashCodeVersion>6.0.0</MicrosoftBclHashCodeVersion>
     <SystemBuffersVersion>4.6.1</SystemBuffersVersion>
     <SystemDataSqlClientVersion>4.9.0</SystemDataSqlClientVersion>
-    <SystemMemoryVersion>4.6.2</SystemMemoryVersion>
+    <SystemMemoryVersion>4.6.3</SystemMemoryVersion>
     <SystemNumericsVectorsVersion>4.6.1</SystemNumericsVectorsVersion>
-    <SystemRuntimeCompilerServicesUnsafeVersion>6.1.1</SystemRuntimeCompilerServicesUnsafeVersion>
-    <SystemThreadingTasksExtensionsVersion>4.6.2</SystemThreadingTasksExtensionsVersion>
+    <SystemRuntimeCompilerServicesUnsafeVersion>6.1.2</SystemRuntimeCompilerServicesUnsafeVersion>
+    <SystemThreadingTasksExtensionsVersion>4.6.3</SystemThreadingTasksExtensionsVersion>
     <SystemValueTupleVersion>4.6.1</SystemValueTupleVersion>
     <!-- Libraries dependencies -->
     <MicrosoftBclAsyncInterfacesVersion>6.0.0</MicrosoftBclAsyncInterfacesVersion>