Add support for unit testing via Unix OS #709

Job	Run time	Billable time
spec (ruby 3.2 \| puppet ~> 8.0) / spec	1m 47s	0s
spec (ruby 2.7 \| puppet ~> 7.0) / spec	1m 30s	0s
acceptance (windows-latest ruby 2.7 \| puppet ~> 7.0) / acceptance	7m 3s	0s
acceptance (windows-latest ruby 3.2 \| puppet ~> 8.0) / acceptance	8m 22s	0s
	18m 42s	0s

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