Service registry`get_service_information` does not return value as dict

[Skanislav]

Describe the bug
In order to access contract data from the behaviours there is a get_contract_api_response in a BaseBehaviour. Currently it's incompatible with get_service_information as it returns tuple and not a dict. Meaning that _check_consistency check would fail asserting that value is not a dict.

open-autonomy/packages/valory/contracts/service_registry/contract.py

Lines 205 to 218 in 98daea9

	@classmethod
	def get_service_information(
	cls,
	ledger_api: LedgerApi,
	contract_address: str,
	token_id: int,
	) -> ServiceInfo:
	"""Retrieve service information"""
	contract_interface = cls.get_instance(
	ledger_api=ledger_api,
	contract_address=contract_address,
	)
	return contract_interface.functions.getService(token_id).call()