Allow `pdk convert` and `pdk update` to work in a ControlRepo context #442

Job	Run time
spec (ruby 2.7) / spec	58s
spec (ruby 3.2) / spec	46s
acceptance (ruby 3.2 \| ubuntu-latest) / acceptance	12m 22s
acceptance (ruby 2.7 \| windows-2019) / acceptance	28m 34s
acceptance (ruby 3.2 \| windows-2019) / acceptance	31m 39s
acceptance (ruby 2.7 \| ubuntu-latest) / acceptance	12m 48s
	1h 27m 7s

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