Update to Checker Framework 3.22.2 (#610)
Update to Checker Framework 3.22.2 (#610)

Needed for our changes in #608, which requires visibility into some previously
`package` or `private` level internals of Checker Framework's CFG:

- https://github.com/typetools/checker-framework/pull/5152
- https://github.com/typetools/checker-framework/pull/5156
uber/nullaway,uber/nullaway,uber/nullaway