feat(permissions): add create_guild_expressions and create_events perms

[shiftinv]

Summary

Adds Permissions.create_guild_expressions (1<<43) and .create_events (1<44), and updates all the documentation related to creating/editing/deleting emojis, stickers, and events accordingly.

This change isn't being applied to bots yet (except for that one time last week), I'm not aware of a timeline for it either.

https://github.com/discord/discord-api-docs/pull/6305/files

Checklist

• If code changes were made, then they have been tested
  • I have updated the documentation to reflect the changes
  • I have formatted the code properly by running pdm lint
  • I have type-checked the code by running pdm pyright
• This PR fixes an issue
• This PR adds something new (e.g. new method or parameters)
• This PR is a breaking change (e.g. methods or parameters removed/renamed)
• This PR is not a code change (e.g. documentation, README, ...)

[shiftinv]

Partially reverted the documentation changes on methods like Guild.create_sticker in 5eecc67, since these changes don't apply to bots yet; the important part of this PR is the addition of the two new permission bits, anyway.