Bump year in LICENSE.
Bump year in LICENSE.

[ci skip]

WalterShe/predis,gencer/predis,protomouse/predis,RudyJessop/predis,SwelenFrance/predis,zhangyancoder/predis,mrkeng/predis,SecureCloud-biz/predis,CloudSide/predis,moria/predis,johnhelmuth/predis,nguyenthaihan/predis,quangnguyen90/predis,dzung2t/predis,lvbaosong/predis,gopalindians/predis,oswaldderiemaecker/predis