Relayer: use callStatic in OP relayer in order to detect & prevent submission of failing txs

[GabrielBuragev]

After OP Bedrock, the way our OP relayer works changed.
It is no longer able to do gas estimations before submitting the transactions on L1, therefore it cannot detect failing transactions.
As an alternative we can use a call to contract.callStatic.method_name before actually submitting the transaction on chain.
This is free and provides a way to check if a transaction will fail.