fix: avoid endless loop when handling symlinks (#109) by @q0rban #217

Job	Run time
build (18.x, ubuntu-latest)	37s
build (18.x, windows-latest)	1m 41s
build (18.x, macos-latest)	25s
build (20.x, ubuntu-latest)	22s
build (20.x, windows-latest)	1m 40s
build (20.x, macos-latest)	36s
test_20 / test (18.x, ubuntu-latest)	3m 10s
test_18 / test (18.x, ubuntu-latest)	3m 9s
test_host / test (18.x, ubuntu-latest)	5m 53s
test_20 / test (18.x, windows-latest)	6m 14s
test_18 / test (18.x, windows-latest)	5m 43s
test_host / test (18.x, windows-latest)	3m 40s
test_20 / test (18.x, macos-latest)	3m 27s
test_18 / test (18.x, macos-latest)	4m 10s
test_host / test (18.x, macos-latest)	1m 0s
test_20 / test (20.x, ubuntu-latest)	2m 55s
test_host / test (20.x, ubuntu-latest)	5m 49s
test_18 / test (20.x, ubuntu-latest)	3m 11s
test_20 / test (20.x, windows-latest)	4m 49s
test_host / test (20.x, windows-latest)	3m 57s
test_18 / test (20.x, windows-latest)	4m 59s
test_20 / test (20.x, macos-latest)	3m 3s
test_host / test (20.x, macos-latest)	1m 18s
test_18 / test (20.x, macos-latest)	3m 5s
	1h 14m 53s

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