pdksync - (CAT-1618) - Remove deprecated/obsolete codecov gem #30

Job	Run time
spec (ruby 2.7 \| puppet ~> 7.0 - ubuntu-latest) / spec	34s
spec (ruby 2.7 \| puppet ~> 7.0 - windows-latest) / spec	2m 50s
spec (ruby 3.2 \| puppet ~> 8.0 - ubuntu-latest) / spec	30s
spec (ruby 3.2 \| puppet ~> 8.0 - windows-latest) / spec	2m 9s
	6m 3s

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