travis: Use the version of npm being tested
travis: Use the version of npm being tested

DIREKTSPEED-LTD/npm,cchamberlain/npm-msys2,rsp/npm,lxe/npm,yodeyer/npm,Volune/npm,cchamberlain/npm,DaveEmmerson/npm,midniteio/npm,princeofdarkness76/npm,princeofdarkness76/npm,chadnickbok/npm,yibn2008/npm,midniteio/npm,evocateur/npm,misterbyrne/npm,kimshinelove/naver-npm,DIREKTSPEED-LTD/npm,segrey/npm,midniteio/npm,ekmartin/npm,thomblake/npm,kemitchell/npm,DaveEmmerson/npm,DaveEmmerson/npm,TimeToogo/npm,haggholm/npm,xalopp/npm,cchamberlain/npm-msys2,cchamberlain/npm,kemitchell/npm,haggholm/npm,ekmartin/npm,xalopp/npm,Volune/npm,ekmartin/npm,misterbyrne/npm,DIREKTSPEED-LTD/npm,TimeToogo/npm,kimshinelove/naver-npm,evanlucas/npm,segrey/npm,yodeyer/npm,evocateur/npm,yodeyer/npm,cchamberlain/npm,kimshinelove/naver-npm,kemitchell/npm,yibn2008/npm,cchamberlain/npm-msys2,chadnickbok/npm,evanlucas/npm,haggholm/npm,evocateur/npm,chadnickbok/npm,segrey/npm,misterbyrne/npm,rsp/npm,princeofdarkness76/npm,rsp/npm,xalopp/npm,lxe/npm,thomblake/npm,Volune/npm,lxe/npm,evanlucas/npm,thomblake/npm,TimeToogo/npm,yibn2008/npm