xrpl-py v4.3.1 released

[xrpl-announce]

A new version of xrpl-py library is now available on PyPI and Github.

New Additions:

* fix: rectify `STIssue` codec (`MPTCurrency` case only) by @ckeshava in https://github.com/XRPLF/xrpl-py/pull/870
* ci: add Python 3.14 by @mvadari in https://github.com/XRPLF/xrpl-py/pull/874
* Add encode_mptoken_metadata and decode_mptoken_metadata utility functions by @Patel-Raj11 in https://github.com/XRPLF/xrpl-py/pull/880

Changes:
* remove snippets files by @ckeshava in https://github.com/XRPLF/xrpl-py/pull/857
* fix: remove # type: ignore after each REQUIRED by @mvadari in https://github.com/XRPLF/xrpl-py/pull/765
* chore: run prettier on everything by @mvadari in https://github.com/XRPLF/xrpl-py/pull/868

* ci: Fix failing Integration Test workflow by @ckeshava in https://github.com/XRPLF/xrpl-py/pull/883


Release Notes can be found here.