[BUG]: Discord Not Reports Category Full when not at 50 channels

[Coolguy3289]

Bot Version

3.9.4

How are you hosting Modmail?

PM2

Error Logs

https://hastebin.com/eparakoruh.yaml

Screenshots

No response

Additional Information

This is a continuation of a crop up issue already solved by changing the code in the thread.py code on line 1208 to check if the category has 50 channels to 49, however Discord is now reporting the same issue at 48 channels instead now. This issue is to report that bug, and to recommend a dynamic check based on the response from discord rather than a hard check on the number of channels in a category since this is now proved to no longer be reliable by discord.
#3002

[fourjr]

Resolved in v3.10.0-dev5