Fix Windows build #4424

Job	Run time
build-windows	25m 0s
build-distros (alpine)	17m 46s
build-macos	4m 29s
build-sanitizers	10m 38s
build-sanitizers (-DMOLD_USE_ASAN=On)	14m 4s
build-distros (archlinux)	18m 5s
build-freebsd	16m 46s
build-sanitizers (-DMOLD_USE_TSAN=On)	24m 12s
build-distros (debian:11)	11m 23s
build-distros (fedora)	12m 32s
build-msys	12m 32s
build-distros (gentoo/stage3)	20m 0s
build-multi-archs	20m 0s
build-distros (opensuse/tumbleweed)	12m 57s
build-distros (ubuntu:22.04)	11m 5s
	3h 51m 29s

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