Sync with react-hooks-testing-library 3.4.1 to deprecate `wait`

[aduth]

@testing-library/react-hooks@3.4.1 deprecates wait in favor of waitFor:

The wait async util has been deprecated and replaced with waitFor

https://github.com/testing-library/react-hooks-testing-library/releases/tag/v3.4.1

Expected: @testing-library/preact-hooks offers waitFor, and logs on wait as deprecated.
Actual: waitFor does not exist, and wait does not log as deprecated.