fix(eslint): update eslint-config-fxa version (#3853) r=vladikoff
fix(eslint): update eslint-config-fxa version (#3853) r=vladikoff

Fixes #3852
shane-tomlinson/fxa-content-server,shane-tomlinson/fxa-content-server,mozilla/fxa-content-server,vladikoff/fxa-content-server,shane-tomlinson/fxa-content-server,vladikoff/fxa-content-server,vladikoff/fxa-content-server,mozilla/fxa-content-server,mozilla/fxa-content-server