[Snyk] Security upgrade express from 3.4.8 to 4.16.0#9

snyk-bot wants to merge 1 commit intomastertjenkinson/socket.io:masterfrom

snyk-fix-fd86a54f824baee90ac1f7d142eced25tjenkinson/socket.io:snyk-fix-fd86a54f824baee90ac1f7d142eced25Copy head branch name to clipboard