fix(deps): update dependency express to v4.16.2
This Merge Request updates dependency express from
b97faffperf: skip parsing of entire "X-Forwarded-Proto" header
b7817abFix TypeError in res.send when given Buffer and ETag header set
48aba21docs: add missing history for res.download change
de129c2tests: run mocha with --no-exit to detect hangs
This MR has been generated by Renovate Bot.