Bincode support for ExExNotification

[shekhirin]

Describe the feature

Blocked by alloy-rs/alloy#1349

Problem

Alloy has a bunch of structs that use #[serde(skip*)] attributes. This attributes isn't supported in bincode, as well as in rmp-serde.

Unfortunately, It means that we cannot serialize/deserialize ExExNotification using these formats.

Solution

Introduce helper serde modules for those structs that are downstream from ExExNotification and have #[serde(skip*)] attributes on fields and remove those attributes. Modules should be similar to https://github.com/alloy-rs/alloy/blob/5c7470c113df23a625456413bdf8c87e0b7438bc/crates/rpc-types-beacon/src/payload.rs#L275-L298

Then, these modules should be used in structs that have problematic types as fields. For example, for the Block type we will need to use a #[serde_as] on the Block struct and #[serde_as(as = "HeaderBincode")] on the header field

reth/crates/primitives/src/block.rs

Lines 34 to 37 in 4da5f1f

	pub struct Block {
	/// Block header.
	#[deref]
	pub header: Header,

Both of the attributes should be gated by the serde-bincode feature.

The types that need special handling are:

• ExExNotification
• Chain
• SealedBlockWithSenders
• SealedBlock
• SealedHeader
• BlockBody
• TransactionSigned
• Transaction

As a test, we should be able to serialize and deserialize the ExExNotification struct using bincode.

Additional context

No response