Caseutil

What's Changed
* Allow publishing from main branch only by makukha in https://github.com/makukha/caseutil/pull/31
* Cleanup development by makukha in https://github.com/makukha/caseutil/pull/34
* Update docs and metadata
* Add py.typed
* Add Mypy

**Full Changelog**: https://github.com/makukha/caseutil/compare/0.6.4...v0.6.5

What's Changed
* Fix documentation bugs by makukha in https://github.com/makukha/caseutil/pull/30


**Full Changelog**: https://github.com/makukha/caseutil/compare/0.6.3...0.6.4

What's Changed
* Implement community guidelines by makukha in https://github.com/makukha/caseutil/pull/27
* Implement security best practices by makukha in https://github.com/makukha/caseutil/pull/29


**Full Changelog**: https://github.com/makukha/caseutil/compare/0.6.2...0.6.3

What's Changed
* Test with Python 3.13.0rc1 by makukha in https://github.com/makukha/caseutil/pull/25


**Full Changelog**: https://github.com/makukha/caseutil/compare/0.6.1...0.6.2

What's Changed
* Switch from Poetry to PDM by makukha in https://github.com/makukha/caseutil/pull/22
* Other minor DX improvements, see PR

**Full Changelog**: https://github.com/makukha/caseutil/compare/0.6.0...0.6.1

What's Changed
* Rename ALL_CAPS_CASE to CONST_CASE by makukha in https://github.com/makukha/caseutil/pull/17
* Add tests badge by makukha in https://github.com/makukha/caseutil/pull/19


**Full Changelog**: https://github.com/makukha/caseutil/compare/0.5.3...0.6.0