Make Bot#update_status use gateway_check
Make Bot#update_status use gateway_check

This may seem redundant, but if it fails in e.g. game= the error message is slightly more readable.

megumisonoda/discordrb,Roughsketch/discordrb,megumisonoda/discordrb,VxJasonxV/discordrb,Roughsketch/discordrb,VxJasonxV/discordrb,meew0/discordrb,meew0/discordrb