Update to newer SDK

eng/Workarounds.props

@@ -21,6 +21,8 @@
   <PropertyGroup>
     <!-- Working around https://github.com/NuGet/Home/issues/8467 -->
     <NoWarn>$(NoWarn);NU5131</NoWarn>
+    <!-- Workaround until https://github.com/aspnet/AspNetCore-Internal/issues/3103 is resolved -->
+    <NoWarn>$(NoWarn);NU5048</NoWarn>
   </PropertyGroup>
 
   <!-- Workaround https://github.com/dotnet/roslyn/issues/27975 -->

global.json

@@ -1,9 +1,9 @@
 {
   "sdk": {
-    "version": "3.1.100-preview1-014024"
+    "version": "3.1.100-preview1-014400"
   },
   "tools": {
-    "dotnet": "3.1.100-preview1-014024",
+    "dotnet": "3.1.100-preview1-014400",
     "runtimes": {
       "dotnet/x64": [
         "$(MicrosoftNETCoreAppRuntimeVersion)"