Module sre_parse is deprecated since Python 3.11

[kvmajo]

path_to_tbot/tbot/machine/channel/channel.py:196: DeprecationWarning: module 'sre_parse' is deprecated
import sre_parse

https://docs.python.org/3/whatsnew/3.11.html#modules

[Rahix]

This is known, but unfortunately we need its functionality to figure out maximum pattern length here:

tbot/tbot/machine/channel/channel.py

Lines 198 to 201 in 1853255

	parsed = sre_parse.parse(
	typing.cast(str, self.pattern.pattern), flags=self.pattern.flags
	)
	width = parsed.getwidth()

If you have any idea what else to use, feel free to send a PR :)