Add healthcheck to all stores

honeypot/ssh/store/metrics.go

@@ -120,3 +120,7 @@ func (s *MetricsCollectingStore) Stats(statType LoginStats, limit int) ([]StatsR
 func (s *MetricsCollectingStore) Query(query AttemptQuery) ([]models.LoginAttempt, error) {
 	return s.store.Query(query)
 }
+
+func (s *MetricsCollectingStore) IsHealthy() bool {
+	return s.IsHealthy()
+}