Fixes some issues reported with the deprecated feature in v4.4.0.

What's Changed

• fix(types): accept undefined equalityFn for the deprecated useStore by @dai-shi in https://github.com/pmndrs/zustand/pull/1972
• fix: improve warning for deprecated equalityFn by @dai-shi in https://github.com/pmndrs/zustand/pull/1976

New Contributors

• @kangju2000 made their first contribution in https://github.com/pmndrs/zustand/pull/1969

Full Changelog: https://github.com/pmndrs/zustand/compare/v4.4.0...v4.4.1