Image.core.outline will no longer raise an AttributeError

[radarhere]

Pillow/src/PIL/ImageDraw.py

Lines 44 to 49 in 5d52ede

	# experimental access to the outline API
	Outline: Callable[[], Image.core._Outline] | None
	try:
	Outline = Image.core.outline
	except AttributeError:
	Outline = None

The AttributeError here would have happened previously if WITH_ARROW was not defined in C.

#8211 removed the #ifdef WITH_ARROW however, and so now, it is always defined.