fix: hoist order_by clauses from aggregations into window during GroupedTable.mutate() and Agg.over()#11314

NickCrews wants to merge 4 commits intoibis-project:mainibis-project/ibis:mainfrom

NickCrews:agg-order-by-into-windowNickCrews/ibis:agg-order-by-into-windowCopy head branch name to clipboard