[Mobile config] Add v2 endpoints to GatewayInfoV2. Change `min_refreshed_at` to `min_updated_at` #627

Job	Run time
fmt	26s
clippy	2m 23s
build	5m 35s
tests (coverage-point-calculator)	1m 55s
tests (coverage-map)	1m 19s
tests (ingest)	2m 7s
tests (reward-scheduler)	1m 55s
tests-postgres (boost-manager)	2m 39s
tests-postgres (file-store)	2m 25s
tests (task-manager)	1m 2s
tests-postgres (iot-packet-verifier)	4m 7s
tests-postgres (iot-verifier)	3m 13s
tests-postgres (iot-config)	3m 0s
tests-postgres (mobile-config)	2m 24s
tests-postgres (mobile-packet-verifier)	2m 31s
tests-postgres (mobile-verifier)	2m 45s
build-release	0s
	39m 46s

Provide feedback