Bump Microsoft.NET.Test.Sdk from 18.3.0 to 18.4.0#39

dependabot[bot] wants to merge 1 commit intomainjmcentire/agent-safe:mainfrom

dependabot/nuget/sdk/csharp/AgentSafe.Spl.Tests/Microsoft.NET.Test.Sdk-18.4.0jmcentire/agent-safe:dependabot/nuget/sdk/csharp/AgentSafe.Spl.Tests/Microsoft.NET.Test.Sdk-18.4.0Copy head branch name to clipboard