Update version to 12.0.1
Update version to 12.0.1

TylerBrinkley/Newtonsoft.Json,ze-pequeno/Newtonsoft.Json,JamesNK/Newtonsoft.Json,PKRoma/Newtonsoft.Json,oxwanawxo/Newtonsoft.Json,jkorell/Newtonsoft.Json,bfriesen/Newtonsoft.Json