Fix 1.21.10 spawn_entity and entity_velocity packet structures#1119

micahstubbs wants to merge 3 commits intoPrismarineJS:pc-1_21_10PrismarineJS/minecraft-data:pc-1_21_10from

micahstubbs:fix/1.21.10-complete-protocol-fixesmicahstubbs/minecraft-data:fix/1.21.10-complete-protocol-fixesCopy head branch name to clipboard