rusk: add vm_config section to /on/node/info

[herr-seppia]

This is also required to give users a feedback about their upgrade using ruskquery info

Example response

{
    "bootstrapping_nodes": [],
    "chain_id": null,
    "kadcast_address": "127.0.0.1:9000",
    "version": "1.1.0-rc.2",
    "version_build": "1.1.0-rc.2 (bca9a01a 2025-02-13)",
    "vm_config": {
        "block_gas_limit": 3000000000,
        "features": {
            "ABI_PUBLIC_SENDER": 100,
            "key": 50
        },
        "gas_per_deploy_byte": 100,
        "generation_timeout": "3s",
        "min_deploy_points": 5000000,
        "min_deployment_gas_price": 2000
    }
}

See also #3341