message: [Key Manager] Improve metric keys to be more generic about supporting multiple keys.
diff: @@ -298,7 +298,7 @@ where
  // If this is inconsistent, then we are waiting on a reconfiguration...
  if let Err(Error::ConfigInfoKeyMismatch(..)) = self.compare_info_to_config() {
  warn!(LogSchema::new(LogEntry::WaitForReconfiguration));
  - counters::increment_state("consensus_key", "waiting_on_reconfiguration");
  + counters::increment_state("check_keys", "waiting_on_reconfiguration");
  return Ok(Action::NoAction);
  }
  @@ -310,7 +310,7 @@ where
  Ok(Action::SubmitKeyRotationTransaction)
  } else {
  warn!(LogSchema::new(LogEntry::WaitForTransactionExecution));
  - counters::increment_state("consensus_key", "waiting_on_transaction_execution");
  + counters::increment_state("check_keys", "waiting_on_transaction_execution");
  Ok(Action::NoAction)
  };
  }
  @@ -319,7 +319,7 @@ where
  Ok(Action::FullKeyRotation)
  } else {
  info!(LogSchema::new(LogEntry::KeyStillFresh));
  - counters::increment_state("consensus_key", "key_still_fresh");
  + counters::increment_state("check_keys", "keys_still_fresh");
  Ok(Action::NoAction)
  }
  }
  @@ -336,7 +336,7 @@ where
  }
  Action::NoAction => {
  info!(LogSchema::new(LogEntry::NoAction));
  - counters::increment_state("consensus_key", "no_action");
  + counters::increment_state("check_keys", "no_action");
  Ok(())
  }
  }
  