Fix path parsing and tests on windows #168

Job	Run time
tests / build	8s
tests / matrix	11s
tests / latest minors (21.5)	3m 15s
tests / latest minors (20.10)	1m 8s
tests / latest minors (19.9)	1m 14s
tests / latest minors (18.19)	1m 9s
tests / latest minors (17.9)	1m 12s
tests / latest minors (16.20)	1m 13s
tests / latest minors (15.14)	1m 15s
tests / latest minors (14.21)	1m 17s
tests / latest minors (13.14)	1m 8s
tests / latest minors (12.22)	1m 9s
tests / latest minors (11.15)	1m 9s
tests / latest minors (10.24)	1m 8s
tests / non-latest minors	0s
tests / node ${{ inputs.type }} @ ${{ inputs.range }}	0s
node >= 10	0s
	16m 36s

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