(CAT-1688) Upgrade rubocop to `~> 1.50.0` #21

Job	Run time
spec (ruby 2.7 \| puppet ~> 7.0 - windows-latest) / spec	2m 46s
spec (ruby 2.7 \| puppet ~> 7.0 - ubuntu-latest) / spec	1m 4s
spec (ruby 3.2 \| puppet ~> 8.0 - ubuntu-latest) / spec	1m 8s
spec (ruby 3.2 \| puppet ~> 8.0 - windows-latest) / spec	3m 6s
	8m 4s

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