Update LICENSE

Author: GrahamCampbell

LICENSE

@@ -1,7 +1,7 @@
 MIT License
 
 Copyright (c) 2012-2018 Matt Humphrey <matth@windsor-telecom.co.uk>
-Copyright (c) 2018-2021 Graham Campbell <hello@gjcampbell.co.uk>
+Copyright (c) 2018-2022 Graham Campbell <hello@gjcampbell.co.uk>
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal