Merge bitcoin/bitcoin#31543: cmake: Always provide `RPATH` on NetBSD #358

Job	Run time
macOS 14 native, arm64, no depends, sqlite only, gui	19m 51s
Win64 native, VS 2022	2h 10m 26s
macOS 14 native, arm64, fuzz	13m 18s
ASan + LSan + UBSan + integer, no depends, USDT	1h 7m 47s
Win64 native fuzz, VS 2022	40m 14s
test each commit	0s
	4h 31m 36s

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