[JIT][write path] Make NoneType annotation_str emit `NoneType` instead of `None` (#54746)
Summary: Pull Request resolved: https://github.com/pytorch/pytorch/pull/54746
Test Plan: Imported from OSS
Reviewed By: SplitInfinity
Differential Revision: D27350331
Pulled By: jamesr66a
fbshipit-source-id: 3f44d6589c29f39378432d0b6b281d96bb4829e7