Switch to voxpupuli-rubocop #283

Job	Run time
spec (windows-latest ruby 2.7 \| puppet ~> 7.0) / spec	4m 38s
spec (ubuntu-latest ruby 2.7 \| puppet ~> 7.0) / spec	38s
spec (ubuntu-latest ruby 3.2 \| puppet ~> 8.0) / spec	35s
spec (windows-latest ruby 3.2 \| puppet ~> 8.0) / spec	3m 4s
	8m 55s

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