net: Switch to DisconnectMsg in CConnman #632

Job	Run time
ASan + LSan + UBSan + integer, no depends, USDT	1h 7m 56s
ASan + LSan + UBSan + integer, no depends, USDT	1h 7m 56s
Win64 native, VS 2022	2h 7m 5s
Win64 native, VS 2022	52m 22s
test each commit	0s
test each commit	0s
Win64 native fuzz, VS 2022	37m 23s
Win64 native fuzz, VS 2022	37m 23s
macOS 14 native, arm64, no depends, sqlite only, gui	18m 7s
macOS 14 native, arm64, no depends, sqlite only, gui	18m 7s
macOS 14 native, arm64, fuzz	11m 44s
macOS 14 native, arm64, fuzz	11m 44s
	7h 29m 47s

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