[Mobile config] Add v2 endpoints to GatewayInfoV2. Change `min_refreshed_at` to `min_updated_at` #599

Job	Run time
build	2m 14s
clippy	2m 10s
fmt	7s
tests (coverage-point-calculator)	1m 25s
tests (coverage-map)	1m 15s
tests (ingest)	1m 49s
tests (reward-scheduler)	47s
tests-postgres (boost-manager)	2m 56s
tests (task-manager)	1m 17s
tests-postgres (file-store)	2m 5s
tests-postgres (iot-config)	2m 24s
tests-postgres (iot-packet-verifier)	3m 36s
tests-postgres (iot-verifier)	2m 53s
tests-postgres (mobile-config)	2m 31s
tests-postgres (mobile-packet-verifier)	2m 24s
tests-postgres (mobile-verifier)	2m 39s
build-release	0s
	32m 32s

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