Switch to voxpupuli-rubocop #282

Job	Run time
spec (windows-latest ruby 2.7 \| puppet ~> 7.0) / spec	4m 11s
spec (ubuntu-latest ruby 2.7 \| puppet ~> 7.0) / spec	34s
spec (ubuntu-latest ruby 3.2 \| puppet ~> 8.0) / spec	20s
spec (windows-latest ruby 3.2 \| puppet ~> 8.0) / spec	1m 31s
	6m 36s

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