temporarily create a SessionHandle from node id in MessageContext

[todo]

connectedhomeip/src/messaging/tests/MessagingContext.cpp

Lines 60 to 70 in f270ff8

	// TODO: temporarily create a SessionHandle from node id, will be fixed in PR 3602
	return SessionHandle(GetDestinationNodeId(), GetLocalKeyId(), GetPeerKeyId(), GetFabricIndex());
	}
	SessionHandle MessagingContext::GetSessionPeerToLocal()
	{
	// TODO: temporarily create a SessionHandle from node id, will be fixed in PR 3602
	return SessionHandle(GetSourceNodeId(), GetPeerKeyId(), GetLocalKeyId(), mDestFabricIndex);
	}
	Messaging::ExchangeContext * MessagingContext::NewExchangeToPeer(Messaging::ExchangeDelegate * delegate)

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This issue was generated by todo based on a TODO comment in f270ff8 when #8441 was merged. cc @yufengwangca.