Merge hebasto/bitcoin#315: cmake: Fix prefix maps for Guix builds #2861

Job	Run time
Win64 native, VS 2022	1h 27m 49s
macOS 13 native, x86_64, no depends, sqlite only, gui	46m 48s
test each commit	0s
ASan + LSan + UBSan + integer, no depends, USDT	35m 26s
	2h 50m 3s

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