eth_estimateGas does not respect the block parameter

[fab-10]

Description

As defined by the standard https://ethereum.github.io/execution-apis/api-documentation/ eth_estimateGas have a second optional parameter that specified the block to use for the estimation, we ignore that option and just use the chain head in every case.

Acceptance Criteria

eth_estimateGas adhere to the standard and accepts and uses the value passed in the block parameter to perform the estimation.

[fab-10]

hint, many other RPC methods are already parsing and using that parameter, see AbstractBlockParameterMethod