fix: unixfs dir redirect #95

Job	Run time
js-test-and-release / check	1m 42s
js-test-and-release / test-chrome-webworker	35s
js-test-and-release / test-node (windows-latest, lts/*)	2m 26s
js-test-and-release / test-chrome	42s
js-test-and-release / test-firefox	49s
js-test-and-release / test-node (ubuntu-latest, lts/*)	39s
js-test-and-release / test-node (macos-latest, lts/*)	3m 20s
js-test-and-release / test-electron-main	36s
js-test-and-release / test-firefox-webworker	36s
js-test-and-release / test-electron-renderer	22s
js-test-and-release / test-webkit (ubuntu-latest, lts/*)	44s
js-test-and-release / test-webkit (macos-latest, lts/*)	2m 46s
js-test-and-release / test-webkit-webworker (ubuntu-latest, lts/*)	48s
js-test-and-release / test-webkit-webworker (macos-latest, lts/*)	2m 40s
js-test-and-release / release-check	0s
js-test-and-release / release	0s
	18m 45s

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