chore(deps): depend on latest mongoose minor
chore(deps): depend on latest mongoose minor

Since mongoose has switched to semver since version 4, this is now safe.
florianholzapfel/express-restify-mongoose,pedrosousabarreto/express-restify-mongoose,reimund/express-restify-mongoose,qlayer/express-restify-mongoose,codydaig/express-restify-mongoose,gregerolsson/express-restify-mongoose,xdotai/express-restify-mongoose,Ensequence/express-restify-mongoose