Odd code found for PyQt6: always raises an exception

[StSav012]

The following lines assume that in PyQt6.QtGui, there is a Qt object.

qtpy/qtpy/QtCore.py

Lines 49 to 55 in c046821

	# For issue #311
	# Seems like there is an error with sip. Without first
	# trying to import `PyQt6.QtGui.Qt`, some functions like
	# `PyQt6.QtCore.Qt.mightBeRichText` are missing.
	if not TYPE_CHECKING:
	with contextlib.suppress(ImportError):
	from PyQt6.QtGui import Qt

However, in PyQt6 versions 6.2.4, 6.5.3, and 6.6.0, there is no attribute Qt in QtGui. The code seems to be placed there mistakenly.

The issue referenced in the comment is #313.