Update request to 2.83.0

[godspeedelbow]

So, that transitive dep ajv gets bumped from 4.x to 5.x

see: request/request#2652

[godspeedelbow]

/Users/travis/build/mapbox/node-pre-gyp/node_modules/request/node_modules/hawk/node_modules/boom/lib/index.js:5
const Hoek = require('hoek');
^^^^^
gyp ERR! UNCAUGHT EXCEPTION 
gyp ERR! stack SyntaxError: Use of const in strict mode.

Seems like a transitive dependency of request, boom, is not sticking to ES5.

[JLHwung]

Suggest update request to 2.83.0 due to request/request#2776.

[JLHwung]

As long as test passes on node >= 4 and node = 0.10 was added as an attempt to fix a bug, I think it is safe to merge this PR.

[godspeedelbow]

it fails only on 0.10

[igorlima]

Is it possible to have an update on this 🙏

[springmeyer]

Addressed by #347