Replace `typing._LazyAnnotationLib` with `lazy import`

[sobolevn]

cpython/Lib/typing.py

Lines 166 to 173 in ffb543d

	class _LazyAnnotationLib:
	def __getattr__(self, attr):
	global _lazy_annotationlib
	import annotationlib
	_lazy_annotationlib = annotationlib
	return getattr(annotationlib, attr)
	_lazy_annotationlib = _LazyAnnotationLib()

It is a perfect candidate for the refactoring.

Linked PRs

• gh-149415: Replace typing._LazyAnnotationLib with lazy import #149416