stack sizes: reduce stack sizes for modules that use sensor_combined

The sensor_combined topic got reduced from ~780 bytes to 72 bytes.

src/modules/sensors/sensors.cpp

@@ -2478,7 +2478,7 @@ Sensors::start()
 	_sensors_task = px4_task_spawn_cmd("sensors",
 					   SCHED_DEFAULT,
 					   SCHED_PRIORITY_MAX - 5,
-					   2200,
+					   1500,
 					   (px4_main_t)&Sensors::task_main_trampoline,
 					   nullptr);