xrpl-py 4.0.0 released

[xrpl-announce]

A new version of xrpl-py is now available on GitHub and PyPi.

Breaking Change

• fix: remove Python 3.7 support to fix dependency installation and use 3.8 as new default by @khancode in #737
  

Other highlights:

• Use Github-Actions for PyPI release process by @ckeshava in #760
• fix: docs build by @justinr1234 in #761
• Updates to FeeSettings ledger object by @ckeshava in #758
• Add include_deleted param to ledger_entry API by @Kassaking7 in #721
• Validate the serialization of maximum UINT64 value OracleSet txn by @ckeshava in #756
• Use base 10 serialization for all amount fields in MPT by @khancode
• feat: Multi-Purpose Tokens (MPT) @khancode in #732
  

Full Changelog: https://github.com/XRPLF/xrpl-py/compare/v3.0.0...v4.0.0

If you run into any issues with the library, please open a GitHub issue here: https://github.com/XRPLF/xrpl-py/issues

Or if you want help with what you're building you can ask in the Developer Discord here: http://www.xrpldevs.com