update "thumbnails" property for GoogleApiYouTubePlaylistResource (#20078)
update "thumbnails" property for GoogleApiYouTubePlaylistResource (#20078)


rolandzwaga/DefinitelyTyped,georgemarshall/DefinitelyTyped,aciccarello/DefinitelyTyped,georgemarshall/DefinitelyTyped,AbraaoAlves/DefinitelyTyped,borisyankov/DefinitelyTyped,borisyankov/DefinitelyTyped,aciccarello/DefinitelyTyped,AbraaoAlves/DefinitelyTyped,benishouga/DefinitelyTyped,alexdresko/DefinitelyTyped,magny/DefinitelyTyped,arusakov/DefinitelyTyped,zuzusik/DefinitelyTyped,benishouga/DefinitelyTyped,rolandzwaga/DefinitelyTyped,dsebastien/DefinitelyTyped,jimthedev/DefinitelyTyped,one-pieces/DefinitelyTyped,dsebastien/DefinitelyTyped,georgemarshall/DefinitelyTyped,mcliment/DefinitelyTyped,zuzusik/DefinitelyTyped,markogresak/DefinitelyTyped,AgentME/DefinitelyTyped,arusakov/DefinitelyTyped,arusakov/DefinitelyTyped,alexdresko/DefinitelyTyped,chrootsu/DefinitelyTyped,jimthedev/DefinitelyTyped,zuzusik/DefinitelyTyped,jimthedev/DefinitelyTyped,AbraaoAlves/DefinitelyTyped,laurentiustamate94/DefinitelyTyped,benishouga/DefinitelyTyped,benliddicott/DefinitelyTyped,AgentME/DefinitelyTyped,chrootsu/DefinitelyTyped,magny/DefinitelyTyped,aciccarello/DefinitelyTyped,AgentME/DefinitelyTyped,georgemarshall/DefinitelyTyped,AgentME/DefinitelyTyped