fs: fix globSync traverse on allowed directory #2728

Job	Run time
Build slim tarball	1m 40s
aarch64-linux: with shared libraries	24m 22s
aarch64-darwin: with shared libraries	27m 1s
x86_64-linux: with shared libraries	28m 5s
x86_64-darwin: with shared libraries	32m 14s
	1h 53m 22s

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