[mongoose] Fixed typescript version build
[mongoose] Fixed typescript version build

https://travis-ci.org/DefinitelyTyped/DefinitelyTyped/builds/198517411

rolandzwaga/DefinitelyTyped,QuatroCode/DefinitelyTyped,progre/DefinitelyTyped,georgemarshall/DefinitelyTyped,progre/DefinitelyTyped,johan-gorter/DefinitelyTyped,mcrawshaw/DefinitelyTyped,dsebastien/DefinitelyTyped,benishouga/DefinitelyTyped,zuzusik/DefinitelyTyped,nycdotnet/DefinitelyTyped,magny/DefinitelyTyped,zuzusik/DefinitelyTyped,markogresak/DefinitelyTyped,AbraaoAlves/DefinitelyTyped,AbraaoAlves/DefinitelyTyped,georgemarshall/DefinitelyTyped,georgemarshall/DefinitelyTyped,borisyankov/DefinitelyTyped,AgentME/DefinitelyTyped,QuatroCode/DefinitelyTyped,johan-gorter/DefinitelyTyped,amir-arad/DefinitelyTyped,chrootsu/DefinitelyTyped,magny/DefinitelyTyped,YousefED/DefinitelyTyped,AbraaoAlves/DefinitelyTyped,jimthedev/DefinitelyTyped,abbasmhd/DefinitelyTyped,smrq/DefinitelyTyped,AgentME/DefinitelyTyped,benishouga/DefinitelyTyped,dsebastien/DefinitelyTyped,georgemarshall/DefinitelyTyped,arusakov/DefinitelyTyped,minodisk/DefinitelyTyped,alexdresko/DefinitelyTyped,jimthedev/DefinitelyTyped,minodisk/DefinitelyTyped,zuzusik/DefinitelyTyped,aciccarello/DefinitelyTyped,abbasmhd/DefinitelyTyped,mcrawshaw/DefinitelyTyped,AgentME/DefinitelyTyped,GiedriusGrabauskas/DefinitelyTyped,arusakov/DefinitelyTyped,smrq/DefinitelyTyped,AgentME/DefinitelyTyped,mcliment/DefinitelyTyped,ashwinr/DefinitelyTyped,rolandzwaga/DefinitelyTyped,laurentiustamate94/DefinitelyTyped,benliddicott/DefinitelyTyped,nycdotnet/DefinitelyTyped,borisyankov/DefinitelyTyped,chrootsu/DefinitelyTyped,aciccarello/DefinitelyTyped,GiedriusGrabauskas/DefinitelyTyped,ashwinr/DefinitelyTyped,aciccarello/DefinitelyTyped,isman-usoh/DefinitelyTyped,one-pieces/DefinitelyTyped,arusakov/DefinitelyTyped,jimthedev/DefinitelyTyped,isman-usoh/DefinitelyTyped,benishouga/DefinitelyTyped,alexdresko/DefinitelyTyped,YousefED/DefinitelyTyped