[Feature] add ssz support for beacon request types

[mattsse]

Component

rpc

Describe the feature you would like

spec: https://flashbots.github.io/relay-specs/#/

blocks can be submitted as josn or ssz

we currently don't have ssz support for the submit types:

alloy/crates/rpc-types-beacon/src/relay.rs

Lines 125 to 129 in 095ed89

	/// Submission for the `/relay/v1/builder/blocks` endpoint (Deneb).
	#[derive(Debug, Clone, PartialEq, Eq, Serialize, Deserialize)]
	#[serde(deny_unknown_fields)]
	#[cfg_attr(feature = "ssz", derive(ssz_derive::Decode, ssz_derive::Encode))]
	pub struct SignedBidSubmissionV3 {

TODO

• add ssz support, payload types already have ssz:

  alloy/crates/rpc-types-engine/src/payload.rs

  Lines 142 to 144 in 095ed89

  	#[serde(rename_all = "camelCase")]
  	#[cfg_attr(feature = "ssz", derive(ssz_derive::Encode, ssz_derive::Decode))]
  	pub struct ExecutionPayloadV1 {

see also:
https://github.com/flashbots/builder/blob/df9c765067d57ab4b2d0ad39dbb156cbe4965778/builder/relay.go#L137-L154C31
https://github.com/attestantio/go-builder-client/blob/73e0a0b2ce80aac4db7705ac3af06e6b85b0d64a/api/deneb/submitblockrequest_ssz.go#L14

Additional context

No response

[programskillforverification]

I want to try this. Could you assign to me?