Use `max_over_time` for pgbouncer_used_clients
Use max_over_time
for pgbouncer_client_conn
This will use a max over time, rather than an average over time for the pgbouncer used clients. Making sure we don't mask brief moments of saturation in capacity planning.
change: raise hard slo to 90% for pgbouncer_client_conn
Edited by Bob Van Landuyt