request upgraded to 2.44.0

Retire.js says that there is a known vulnerability in qs (dependency of request).

$ npm install -g retire
$ retire

qs 0.6.6 has known vulnerabilities: https://nodesecurity.io/advisories/qs_dos_extended_event_loop_blocking
block_io 0.2.0
↳ request 2.36.0
 ↳ qs 0.6.6