pybricks.common.Logger: Call event poll hook on save.

When the hub is not connected, it will still try to output
all the data, so we need to make sure that system resources
get some time while that happens.

Fixes: pybricks/support#738

pybricks/common/pb_type_logger.c

@@ -161,8 +161,8 @@ STATIC mp_obj_t tools_Logger_save(size_t n_args, const mp_obj_t *pos_args, mp_ma
         mp_print_str(&mp_plat_print, row_str);
         #endif // PYBRICKS_PY_COMMON_LOGGER_REAL_FILE
 
-        // Writing data can take a while, so give MicroPython some time too
-        mp_handle_pending(true);
+        // Writing data can take a while, so give other resources some time too
+        MICROPY_EVENT_POLL_HOOK;
     }
 
     #if PYBRICKS_PY_COMMON_LOGGER_REAL_FILE