Merge bitcoin/bitcoin#30065: init: fixes file descriptor accounting #3159

Job	Run time
macOS 13 native, x86_64, no depends, sqlite only, gui	40m 46s
ASan + LSan + UBSan + integer, no depends, USDT	57m 45s
Win64 native, VS 2022	2h 24m 41s
test each commit	0s
	4h 3m 12s

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