fix(bonfire): random disconnects from redis

[TheBobBobs]

• [X] I understand and have followed the contribution guide
• [X] I have tested my changes locally and they are working as intended
• [X] These changes do not have any notable side effects on other Revolt projects

Use fred.rs for bonfires redis connections instead of redis-rs https://github.com/aembke/fred.rs

Fixes the random disconnects from bonfire when redis-rs fails to parse a message.