bump(modem): 1.0.3 -> 1.0.4 #793

Job	Run time
Build (latest, pppos_client)	7m 56s
Host Tests	2m 20s
Build (latest, modem_console)	4m 54s
Build (latest, modem_tcp_client)	12m 20s
Run gcovr on esp modem host test	2m 8s
Build (latest, ap_to_pppos)	13m 49s
Build (latest, simple_cmux_client)	3m 15s
Build (release-v4.2, pppos_client)	45s
Build (release-v4.2, modem_console)	4m 4s
Build (release-v4.2, ap_to_pppos)	4m 1s
Build (release-v4.3, pppos_client)	3m 0s
Build (release-v4.3, modem_console)	5m 40s
Build (release-v4.3, ap_to_pppos)	5m 28s
Build (release-v4.3, simple_cmux_client)	2m 24s
Build (release-v4.4, pppos_client)	7m 40s
Build (release-v4.4, modem_console)	4m 34s
Build (release-v4.4, ap_to_pppos)	8m 52s
Build (release-v4.4, simple_cmux_client)	2m 36s
Build (release-v5.0, pppos_client)	8m 23s
Build (release-v5.0, modem_console)	4m 9s
Build (release-v5.0, modem_tcp_client)	10m 45s
Build (release-v5.0, ap_to_pppos)	7m 53s
Build (release-v5.0, simple_cmux_client)	3m 6s
	2h 10m 2s

Provide feedback