Bump Microsoft.NET.Test.Sdk from 17.12.0 to 18.3.0#17

dependabot[bot] wants to merge 1 commit intomasterAnaRita02/dotnet-outdated:masterfrom

dependabot/nuget/test/DotNetOutdated.Tests/master/Microsoft.NET.Test.Sdk-18.3.0AnaRita02/dotnet-outdated:dependabot/nuget/test/DotNetOutdated.Tests/master/Microsoft.NET.Test.Sdk-18.3.0Copy head branch name to clipboard