mon: Modifying trim logic to change paxos_service_trim_max dynamically

mon: Modifying trim logic to change paxos_service_trim_max dynamically

 Currently, the Paxos Service trim logic is bounded by a max value (paxos_service_trim_max). This change dynamically modifies the max value when the number of logs to be trimmed is higher than paxos_service_trim_max.

 The paxos_service_trim_max_multiplier has been added in case we want to increase paxos_service_trim_max by a certain factor. If this option is enabled we get a new upper bound when trim sizes are high.

Fixes: https://tracker.ceph.com/issues/50004
Signed-off-by: Aishwarya Mathuria <amathuri@redhat.com>