Reimplement the `web3_clientVersion` rpc method to return sequencer version information.

[optimisticben]

Is your feature request related to a problem? Please describe. Desire to identify sequencer version through rpc methods.

Describe the solution you'd like Reimplement the web3_clientVersion rpc method to return sequencer version information.

Additional context The rpc method currently returns geth and go versions, but nothing to identify the sequencer version.