chore: adds DataSystem contract test support (#110) #228

Job	Run time
test-platforms-and-versions (ubuntu-latest, 19)	2m 41s
test-packaging	3m 54s
test-platforms-and-versions (ubuntu-latest, 11)	2m 51s
test-platforms-and-versions (ubuntu-latest, 8)	2m 48s
test-platforms-and-versions (ubuntu-latest, 17)	2m 55s
test-contract-tests	3m 32s
	18m 41s

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