* Bump zeroconf to 0.74.0
changelog: https://github.com/python-zeroconf/python-zeroconf/compare/0.72.3...0.74.0
- more cython build fixes
- performance improvements (mostly for pyatv)
* handle typing
* handle typing
* remove if TYPE_CHECKING, this doesnt get called that often
* remove if TYPE_CHECKING, this doesnt get called that often
* Initial diagnostics
* Include MLP of local OTBR
* Add dep on pyroute2
* Move pyroute2 onto executor
* More comments
* Read thread data direct from zeroconf cache
* Get neighbour cache for known BR's
* isort
* mypy
* Add diagnostic test
* rel import
* Fix pylint
* Restore coverage in discovery.py
* Add WS command for discovering Thread routers
* Fix type annotations
* Mock zeroconf in tests
* Key discovery by external MAC address
* Add tests
* Include hostname in data, allow missing fields
* Fix typo
* Include server instead of hostname
