Version 1.2.4.1

This is a recommended update, but it is not mandatory and includes no consensus based changes.

What's Changed

[Refactor] GetStakeModifier by @Zannick in #980
[Trivial] Fix a size_t reference for clang 13 by @Zannick in #979
[RPC] Correct getblockstats fee calculation by @Zannick in #990
C++17 and macOS Catalina by @eugene-so in #984
[Refactor] Split ZerocoinSpendReceipt into a generic Receipt. by @Zannick in #974
[Consensus][RingCT] Correctly track and test RingCT spends. by @Zannick in #972
[Refactor] Move parts of AddAnonInputs into helper functions. by @Zannick in #978
[Logging] Add missing format specifier. by @Zannick in #992
[GUI|MINE] update for override of max thread usage by @WetOne in #975
Proposed fix for (one type of) force_return errors. by @Zannick in #995
Correct progress display on searchdeterministiczerocoin by @Zannick in #994
[QT] Proposed fix for (one type of) force_return errors by @codeofalltrades in #996
Add RPCs for external RandomX mining by @us77ipis in #997
[RPC][Wallet] Create multiple transactions with one command. by @Zannick in #991
Update copyright dates on modified files. by @codeofalltrades in #1002
[Build] build changes for c++17 and OSX by @codeofalltrades in #1005

Full Changelog: v1.2.3.1...v1.2.4.1