v0.8.4

What's Changed

• cleanup: remove handling of SigningMarshaler from f3 by @Kubuxu in #923
• Track participation in metrics for quality, commit, prepare and decide by @Kubuxu in #924
• metrics: report converge participation by @Kubuxu in #926
• Remove the remaining mechanism for swappable payload marshal for signing by @masih in #927
• metrics: report chain lengths, cleanup metrics a bit by @Kubuxu in #928
• Improve test coverage of chain exchange package by @masih in #931
• metrics: add total power table size metric by @Kubuxu in #932
• Implement forking fake EC and test chain exchange by @masih in #933
• merkle: further hashing opimizations by @Kubuxu in #935
• feat: disable empty tipsets for powerstore test by @Kubuxu in #940
• Reset current round gauge to zero at start by @masih in #947
• fix: validate chain proposal length against chain exchange max length by @Kubuxu in #942
• Remove chainx validation rule between max age and rebroadcast interval by @masih in #953
• Bump golang.org/x/net from 0.36.0 to 0.38.0 by @dependabot in #949
• Update F3 observer to accept partial messages by @masih in #957

Full Changelog: v0.8.3...v0.8.4