build(deps): bump Microsoft.NET.Test.Sdk from 17.11.1 to 17.12.0 in /csharp/PhoneNumbers.Extensions.Test in the phonenumbers_extensions_test_minor_patch_updates group

build(deps): bump Microsoft.NET.Test.Sdk from 17.11.1 to 17.12.0 in /csharp/PhoneNumbers.Extensions.Test in the phonenumbers_extensions_test_minor_patch_updates group #81