Python-carbon

Complete commits list: https://github.com/briannesbitt/Carbon/compare/2.53.0...2.53.1

Summary:
- Allow PHP 8.1 return types for Countable

Complete commits list: https://github.com/briannesbitt/Carbon/compare/2.52.0...2.53.0

Summary:
- Fixed 2439 PHP 8.1 compatibility
- Added 2424 unit test for PHP bug 80974
- Removed 2419 work-around for bug 81106 fixed in PHP 8.1 beta 3
- Refactored 2427 Use null coalescing operator when possible
- Optimized 2428 RegExp
- Upgraded 2426 friendsofphp/php-cs-fixer to ^3

Complete commits list: https://github.com/briannesbitt/Carbon/compare/2.51.1...2.52.0

Summary:
- Fixed 2416 Improve factory timezone handling
- Fixed 2395 Overflow with plural unit
- Fixed 2397 Remove period from "min" (minute) in Polish
- Refactored unit tests 2412 2407 2404 2402 2401

Complete commits list: https://github.com/briannesbitt/Carbon/compare/2.51.0...2.51.1

Summary:
- Restored 2400 PHPStan extension config in package

Complete commits list: https://github.com/briannesbitt/Carbon/compare/2.50.0...2.51.0

Summary:
- Added 2299 support for msgpack
- Fixed 2398 compatibility issue with symfony/translation v4.4.27
- Fixed 2383 Georgian (KA) month names
- Refactored 2393 2391 2390 2387 2388 2389

Complete commits list: https://github.com/briannesbitt/Carbon/compare/2.49.0...2.50.0

Summary:
- Added 2353 Use the return value from callback in `withTestNow()`
- Added 2351 `avoidMutation()` method to copy an instance only if mutable
- Fixed 2349 polish translation causing a runtime error
- Fixed PHP 8.1 compatibility 2319 2364
- Fixed 2368 Precision bug when converting float with leading zero in decimal part of a timestamp
- Refactored typing 2367 2366 2365 2359 2360