Replace Z23s with Z24s in function-orchestrator
Now using makeVoid instead of makeUnit,
isVoid instead of validatesAsUnit, Z24 instead of Z23, makeResultEnvelopeWithVoid instead of makeResultEnvelope.
Changing Z23 to Z24 in evaluator results (transitional measure)
Bug: T285433
Change-Id: I56c588efcd63de2f60f0f5179427fce390e9a51d