Fix database connection error

Missed this in commit c64f35c.

src/actions/api__private/health/show.cr

@@ -10,7 +10,7 @@
 #   end
 
 #   private def verify_database_connection
-#     Db::VerifyConnection.new(quiet: LuckyEnv.production?).run_task
+#     Avram.settings.database_to_migrate.exec("SELECT 1;")
 #   end
 
 #   private def verify_redis_connection