[Snyk] Security upgrade express from 3.21.2 to 4.0.0#1

Open

snyk-bot wants to merge 1 commit intomasterfrom

snyk-fix-6d8669a1843d020870c7f7a9db34bdb7

Commits on Mar 12, 2020

fix: package.json to reduce vulnerabilities
snyk-bot
committed