Merge pull request #3977 from dotnet/dependabot/nuget/csharp/tutorials/nullable-reference-migration/finished/SimpleFeedReader.Tests/Moq-4.15.1

Bump Moq from 4.14.7 to 4.15.1 in /csharp/tutorials/nullable-reference-migration/finished/SimpleFeedReader.Tests

Author: richlander

csharp/tutorials/nullable-reference-migration/finished/SimpleFeedReader.Tests/SimpleFeedReader.Tests.csproj

@@ -6,7 +6,7 @@
   </PropertyGroup>
   <ItemGroup>
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="16.8.0" />
-    <PackageReference Include="Moq" Version="4.14.7" />
+    <PackageReference Include="Moq" Version="4.15.1" />
     <PackageReference Include="xunit" Version="2.4.1" />
     <PackageReference Include="xunit.runner.visualstudio" Version="2.4.3" />
   </ItemGroup>