Get diffsize and l1 feerate from transaction receipt in balance and nonce test

[ercecan]

In Balance and nonce rpc test under ethereum/rpc we hardcode the diffsize and l1feerate and subtract their multiplication, however if we can manage to get that data via rpc then we would not need to hardcode those values.

On branch erce/use-custom-rpc-for-receipt there is implementation of rpc request to eth_getTransactionReceipt but the necessary fields are nil. We should go over that code and retrieve the necessary fields.