Change board_check to board_level in platformio.ini

variants/nrf52840/gat562_mesh_tracker_pro/platformio.ini

@@ -2,7 +2,7 @@
 [env:gat562_mesh_tracker_pro]
 extends = nrf52840_base
 board = gat562_mesh_tracker_pro
-board_check = true
+board_level = extra
 build_flags = ${nrf52840_base.build_flags}
   -I variants/nrf52840/gat562_mesh_tracker_pro
   -D GAT562_MESH_TRACKER_PRO