tests: fix order of parameters in with_rows_ignore_order
tests: fix order of parameters in with_rows_ignore_order

When reporting a failure, expected rows were mixed up with received
rows. Also, the message assumed it received more rows, but it can
as well be less, so now it reports a "different number" of rows.

scylladb/scylla,avikivity/scylla,avikivity/scylla,scylladb/scylla,scylladb/scylla,avikivity/scylla,scylladb/scylla