v1.3.0a1

Please see the changelog for a full changelog.

Notable changes (there are a lot, you should really read the changelog):

• Rewrote the sync store to be a real store
• Implemented lazy membership loading (speeds up sync when in large rooms)
• Overhauled argument detection (see changelog)
• Added python 3.13 support
• Dropped python 3.9 support
• Overhauled attachment handling (and fixed automatic uploads never being encrypted)
• Command tasks now have a structured task name
• Fixed {add,remove]}_event_listener not taking an Event type
• Added wait_for_event
• Fixed a bug that caused thumbnail bodies to duplicate
• Added NioBot.global_command_check
• Added HTMLTable helper class