Don't convert keys to atoms

[forest]

extracker/lib/extracker/json.ex

Line 11 in 79bb2a2

Poison.decode!(json, keys: :atoms)

Given the possible issues with converting keys to atoms when parsing JSON (see below) consider other options. This might not be an issue since the possible atoms are limited by the APIs.

https://blog.pryin.io/how-to-dos-your-elixir-app-with-twitter-and-atoms