Bump Microsoft.NET.Test.Sdk from 18.4.0 to 18.5.1#8

dependabot[bot] wants to merge 2 commits intomainBobJWalker/Hello-Containers:mainfrom

dependabot/nuget/src/HelloContainers.Tests/Microsoft.NET.Test.Sdk-18.5.1BobJWalker/Hello-Containers:dependabot/nuget/src/HelloContainers.Tests/Microsoft.NET.Test.Sdk-18.5.1Copy head branch name to clipboard