fix(sequencer): use wall-clock time instead of L1 block timestamp for slot estimation#21769

PhilWindle merged 2 commits intomerge-train/spartanAztecProtocol/aztec-packages:merge-train/spartanfrom

palla/do-not-use-l1-timeAztecProtocol/aztec-packages:palla/do-not-use-l1-timeCopy head branch name to clipboard