fix: avoid endless loop when handling symlinks (#109) by @q0rban #212

Job	Run time
build (18.x, ubuntu-latest)	24s
build (18.x, windows-latest)	1m 10s
build (18.x, macos-latest)	24s
build (20.x, ubuntu-latest)	22s
build (20.x, windows-latest)	2m 54s
build (20.x, macos-latest)	23s
test_20 / test (18.x, ubuntu-latest)	3m 24s
test_host / test (18.x, ubuntu-latest)	5m 24s
test_20 / test (18.x, windows-latest)	5m 21s
test_host / test (18.x, windows-latest)	3m 17s
test_20 / test (18.x, macos-latest)	3m 13s
test_18 / test (18.x, ubuntu-latest)	3m 23s
test_host / test (18.x, macos-latest)	1m 14s
test_20 / test (20.x, ubuntu-latest)	2m 56s
test_18 / test (18.x, windows-latest)	5m 20s
test_host / test (20.x, ubuntu-latest)	5m 26s
test_20 / test (20.x, windows-latest)	4m 31s
test_18 / test (18.x, macos-latest)	3m 32s
test_host / test (20.x, windows-latest)	4m 55s
test_18 / test (20.x, ubuntu-latest)	3m 0s
test_20 / test (20.x, macos-latest)	4m 36s
test_host / test (20.x, macos-latest)	1m 16s
test_18 / test (20.x, windows-latest)	5m 40s
test_18 / test (20.x, macos-latest)	3m 22s
	1h 15m 27s

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