Update set_on_reset_callback lamdba function to new signature

Author: Mauro Passerino

irobot_events_executor/src/rclcpp/timers_manager.cpp

@@ -41,8 +41,9 @@ void TimersManager::add_timer(rclcpp::TimerBase::SharedPtr timer)
     timers_updated_ = timers_updated_ || added;
   }
 
-  timer->set_on_reset_callback([this](){
+  timer->set_on_reset_callback([this](size_t arg){
     {
+      (void)arg;
       rclcpp::Lock lock(timers_mutex_);
       timers_updated_ = true;
     }