Bump Microsoft.NET.Test.Sdk from 17.12.0 to 18.5.1#18

inflop merged 2 commits into

masterinflop/Inflop.VatSharp:masterfrom

dependabot/nuget/tests/Inflop.VatSharp.Tests/Microsoft.NET.Test.Sdk-18.5.1inflop/Inflop.VatSharp:dependabot/nuget/tests/Inflop.VatSharp.Tests/Microsoft.NET.Test.Sdk-18.5.1Copy head branch name to clipboard