(CAT-2121) Update tests to account for `pdk validate` changes #827

Job	Run time
spec (ruby 2.7) / spec	57s
spec (ruby 3.2) / spec	52s
acceptance (ruby 3.2 \| windows-2019) / acceptance	8m 13s
acceptance (ruby 3.2 \| ubuntu-latest) / acceptance	12m 58s
acceptance (ruby 2.7 \| windows-2019) / acceptance	30m 54s
acceptance (ruby 2.7 \| ubuntu-latest) / acceptance	12m 44s
	1h 6m 38s

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