WiFi: add scan() #824

Job	Run time
Build and package cores	14m 27s
Split off zephyr_contrib	8s
Split off zephyr	10s
Split off zephyr_main	8s
Split off zephyr_unoq	13s
Test zephyr_main:portentac33	2m 44s
Test zephyr_main:giga	1m 59s
Test zephyr_contrib:frdm_mcxn947	2m 21s
Test zephyr_main:nano33ble	1m 58s
Test zephyr_main:portentah7	2m 30s
Test zephyr:unoq	2m 17s
Test zephyr_main:niclasense	2m 30s
Test zephyr_main:opta	2m 28s
Test zephyr_contrib:frdm_rw612	1m 47s
Test zephyr_contrib:ek_ra8d1	2m 23s
Publish jsons	15s
Collect logs	7s
verify-core	-1s
Publish core	-1s
cleanup-artifacts	3s
	38m 26s

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