[Feature Request] Add each individual leader/follower check failure metrics

[patelsmit32123]

Is your feature request related to a problem? Please describe

Currently, there are retries configured on leader/follower check failure (default 3), so if leader check fails 3 consecutive times, then only the failure metric is emitted. The feature request aims to emit metric for each failure individually so that users can monitor how frequently/intermittently the leader/follower checks are failing in a given window regardless of the retries configured.

Describe the solution you'd like

Emit the metric on each individual failure.

Related component

Cluster Manager

Describe alternatives you've considered

No response

Additional context

No response

[patelsmit32123]

cc @andrross @amberzsy