fix(install): avoid false musl detection on WSL/glibc systems #5665

Job	Run time
detect-changes	7s
download-previous-rolldown-binaries	10s
Test (windows-latest, x86_64-pc-windows-msvc)	6m 41s
Lint	1m 21s
Test (macos-latest, aarch64-apple-darwin)	2m 38s
Test (ubuntu-latest, x86_64-unknown-linux-gnu)	2m 3s
Run task	1m 18s
CLI E2E test (ubuntu-latest)	4m 34s
CLI E2E test (windows-latest)	6m 57s
CLI E2E test (macos-latest)	4m 29s
Local CLI `vp install` E2E test	0s
done	3s
	30m 21s

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