fix: Fix libiconv build for windows packaging #2755

Job	Run time
setup-release	3s
linux-snap-packaging	9m 35s
linux-rpm-packaging	1m 4s
linux-debian-packaging	1m 42s
macosx-packaging (macos-latest, x86_64)	4m 34s
sources	32s
windows-packaging (x64)	52m 38s
macosx-packaging (macos-latest, arm64)	1m 42s
linux-appimage	1m 30s
linux-installer	10s
publish-release	0s
publish-nightly	0s
	1h 13m 30s

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