chore(LICENSE): update copyright year

sanjayaksaxena · sanjayaksaxena · commit 3018cc370a9e · 2022-10-07T12:49:12.000+05:30
diff --git a/LICENSE b/LICENSE
@@ -1,6 +1,6 @@
                            The MIT License
 
-Copyright (c) 2017-20  GRAYPE Systems Private Limited
+Copyright (c) 2017-22  GRAYPE Systems Private Limited
 
 Permission is hereby granted, free of charge, to any person obtaining a copy of
 this software and associated documentation files (the "Software"), to deal in
