Suboptimal default timeout in FollowerPingRpc causing master quorum breaks

[kaikash]

Hello!

I'm encountering an issue where the default value for FollowerPingRpcTimeout, which is currently set to 1 second, appears to be insufficient. This setting seems problematic because master followers frequently experience delays during the fork call. Such delays lead to the followers freezing for extended periods, resulting in Error pinging follower. This error, in turn, disrupts the master quorum. Moreover, it might worth to change other election manager defaults as well?

[kaikash]

The same for leader_lease_timeout and leader_lease_grace_delay in hydra_manager.