Validate path length against max path size #502

Job	Run time
build (RAK_4631_repeater)	2m 17s
build (LilyGo_Tlora_C6_repeater_)	1m 59s
build (RAK_4631_companion_radio_ble)	2m 20s
build (RAK_4631_room_server)	2m 15s
build (Heltec_v3_companion_radio_ble)	3m 4s
build (PicoW_repeater)	2m 36s
build (wio-e5-mini_repeater)	1m 35s
build (Heltec_v3_room_server)	2m 52s
build (Heltec_v3_repeater)	3m 3s
	22m 1s

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