muf/fof2 upload is blocking

[classabbyamp]

[0x5c]

Pretty sure it's the upload process that blocks the bot (but not the asyncio loop, it's a well-behaved coroutine from what the d.py folks are saying), but could be interesting to test if the conversion process has any impact.

[classabbyamp]

related to #322

[classabbyamp]

confirmed this still happens with pycord