Log Message:
py-babel: updated to 2.15.0

Version 2.15.0

Python version support

* Babel 2.15.0 will require Python 3.8 or newer.

Features

* CLDR: Upgrade to CLDR 44
* Dates: Support for the "fall back to short format" logic for time \ 
delta formatting
* Message: More versatile .po IO functions
* Numbers: Improved support for alternate spaces when parsing numbers

Infrastructure

* Upgrade GitHub Actions
* The Unicode license is now included in `locale-data` and in the documentation