update static type def
update static type def

Types are found here
https://github.com/pusher/pusher-js/blob/7837cf20fab8797bba7dbc5ceb7b088a87244832/src/core/pusher.ts#L25
dsebastien/DefinitelyTyped,borisyankov/DefinitelyTyped,markogresak/DefinitelyTyped,georgemarshall/DefinitelyTyped,georgemarshall/DefinitelyTyped,georgemarshall/DefinitelyTyped,borisyankov/DefinitelyTyped,dsebastien/DefinitelyTyped,mcliment/DefinitelyTyped,georgemarshall/DefinitelyTyped