bump(modem): 1.0.3 -> 1.0.4 #792

Job	Run time
Build (latest, pppos_client)	7m 55s
Host Tests	2m 11s
Run gcovr on esp modem host test	2m 7s
Build (latest, modem_console)	4m 37s
Build (latest, modem_tcp_client)	12m 20s
Build (latest, ap_to_pppos)	12m 56s
Build (latest, simple_cmux_client)	3m 5s
Build (release-v4.2, pppos_client)	48s
Build (release-v4.2, modem_console)	5m 36s
Build (release-v4.2, ap_to_pppos)	4m 33s
Build (release-v4.3, pppos_client)	3m 10s
Build (release-v4.3, modem_console)	7m 25s
Build (release-v4.3, ap_to_pppos)	5m 20s
Build (release-v4.3, simple_cmux_client)	2m 45s
Build (release-v4.4, pppos_client)	7m 35s
Build (release-v4.4, modem_console)	4m 35s
Build (release-v4.4, ap_to_pppos)	7m 35s
Build (release-v4.4, simple_cmux_client)	3m 40s
Build (release-v5.0, pppos_client)	6m 49s
Build (release-v5.0, modem_console)	4m 11s
Build (release-v5.0, modem_tcp_client)	8m 43s
Build (release-v5.0, ap_to_pppos)	7m 56s
Build (release-v5.0, simple_cmux_client)	2m 18s
	2h 8m 10s

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