Fix typescript version
Fix typescript version

borisyankov/DefinitelyTyped,dsebastien/DefinitelyTyped,borisyankov/DefinitelyTyped,mcliment/DefinitelyTyped,dsebastien/DefinitelyTyped,magny/DefinitelyTyped,markogresak/DefinitelyTyped,georgemarshall/DefinitelyTyped,magny/DefinitelyTyped,georgemarshall/DefinitelyTyped,georgemarshall/DefinitelyTyped,georgemarshall/DefinitelyTyped