Use abstract classes for base classes in protocol package

[PerchunPak]

mcstatus/mcstatus/protocol/connection.py

Lines 412 to 431 in baf514f

	class BaseConnection:
	"""Base Connection class. Implements flush, receive, and remaining."""
	__slots__ = ()
	def __repr__(self) -> str:
	"""Return representation of self."""
	return f"<{self.__class__.__name__} Object>"
	def flush(self) -> bytearray:
	"""Raise TypeError, unsupported."""
	raise TypeError(f"{self.__class__.__name__} does not support flush()")
	def receive(self, data: BytesConvertable | bytearray) -> None:
	"""Raise TypeError, unsupported."""
	raise TypeError(f"{self.__class__.__name__} does not support receive()")
	def remaining(self) -> int:
	"""Raise TypeError, unsupported."""
	raise TypeError(f"{self.__class__.__name__} does not support remaining()")

This class only adds methods, that just raise exception. We should use abstract class here.