Add last_sortition_ch to RPCTenure#6818

jacinta-stacks wants to merge 4 commits intostacks-network:developstacks-network/stacks-core:developfrom

jacinta-stacks:feat/add-parent-consensus-hash-to-rpc-tenurejacinta-stacks/stacks-core:feat/add-parent-consensus-hash-to-rpc-tenureCopy head branch name to clipboard