Mgrs

What's Changed
* Build only Python 3.9-3.12 wheels by hobu in https://github.com/hobuinc/mgrs/pull/42


**Full Changelog**: https://github.com/hobuinc/mgrs/compare/1.4.5...1.4.6

* I belly flopped issuing 1.4.4, but version numbers are cheap!

* Fix 39, `packaging` is required

* Wheels 38
* isort, flake8, and black linters

* Unclog the release internet tubes.

* Fix up install requirements 34 (thanks jwilges )