Fix issue building release mode tests locally

See https://devblogs.microsoft.com/nuget/announcing-nuget-6-3-transitive-dependencies-floating-versions-and-re-enabling-signed-package-verification/#new-warnings-when-duplicate-packagereference-packageversion-or-packagedownload-are-found for info about increased warning level.

Also see dotnet/sdk#24747

Not sure where the duplicate reference is coming from though...

Author: michael-hawker

UITests/UITests.Tests.MSTest/UITests.Tests.MSTest.csproj

@@ -16,7 +16,7 @@
     <PackageReference Include="Microsoft.Toolkit" Version="7.1.2" />
     <PackageReference Include="MSTest.TestAdapter" Version="2.1.2" />
     <PackageReference Include="MSTest.TestFramework" Version="2.1.2" />
-    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="16.10.0" />
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="16.11.0" />
     <!-- Microsoft.UI.Xaml MSTest Extension -->
     <PackageReference Include="MUXTestInfra.MSTest" Version="0.0.4" />
     <!-- System packages -->

UnitTests/UnitTests.Notifications.NetCore/UnitTests.Notifications.NetCore.csproj

@@ -11,7 +11,7 @@
   <ItemGroup>
     <PackageReference Include="MSTest.TestAdapter" Version="2.1.2" />
     <PackageReference Include="MSTest.TestFramework" Version="2.1.2" />
-    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="16.10.0" />
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="16.11.0" />
   </ItemGroup>
 
   <Import Project="..\UnitTests.Notifications.Shared\UnitTests.Notifications.Shared.projitems" Label="Shared" />

UnitTests/UnitTests.Notifications.UWP/UnitTests.Notifications.UWP.csproj

@@ -122,7 +122,7 @@
     <PackageReference Include="MSTest.TestFramework">
       <Version>2.1.2</Version>
     </PackageReference>
-    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="16.10.0" />
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="16.11.0" />
     <PackageReference Include="System.ValueTuple">
       <Version>4.5.0</Version>
     </PackageReference>

UnitTests/UnitTests.UWP/UnitTests.UWP.csproj

@@ -143,7 +143,7 @@
     <PackageReference Include="MSTest.TestFramework">
       <Version>2.2.5</Version>
     </PackageReference>
-    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="16.10.0" />
+    <PackageReference Update="Microsoft.NET.Test.Sdk" Version="16.11.0" /> <!-- Had to do this for local release mode, think issue with updates to NuGet warnings, don't understand where duplicate is coming from... -->
     <PackageReference Include="Newtonsoft.Json">
       <Version>10.0.3</Version>
       <!-- DO NOT UPGRADE THIS PACKAGE FROM 10.0.3, this is used for upgrade testing between 6.1.1 and 7.0.0 for the Object Serializers -->

UnitTests/UnitTests.XamlIslands.UWPApp/UnitTests.XamlIslands.UWPApp.csproj

@@ -163,7 +163,7 @@
       <Version>6.1.2</Version>
     </PackageReference>
     <!-- Ignored for now, until it supports Xaml Islands
-    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="16.10.0" />
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="16.11.0" />
     <PackageReference Include="MSTest.TestAdapter" Version="2.1.2" />
     <PackageReference Include="MSTest.TestFramework" Version="2.1.2" />
     -->