perf: unnecessary call to arweave.networkInfo when block height is requested from client

[ppedziwiatr]

calling contract.readState(txId, blockHeight) should not trigger call to arweave.networkInfo().

Also - verify how the deepCopy in https://github.com/redstone-finance/redstone-smartcontracts/blob/main/src/core/modules/impl/ContractHandlerApi.ts#L70 affects the performance - it is basically required by only one contract - ArweaveTeam/SmartWeave#92

[ppedziwiatr]

fixed.

[ppedziwiatr]

though no-one will ever use it real-life, but hey - benchmarks! ;-)