settings: add `network.connection_timeout` and `network.cloud_api.skip_board_detection_calls` #4912

Job	Run time
run-determination	1s
check-outdated (./)	14s
check-config (./)	15s
check-style (./)	46s
build (internal/arduino/discovery/discovery_client)	11s
check-formatting (./)	7s
check-license-headers (./)	21s
build (rpc/internal/client_example)	29s
build (commands/term_example)	29s
	2m 53s

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