Migrate from TransactionSigned to alloy_consensus::Signed<T>

[emhane]

Describe the feature

Remove reth type

reth/crates/primitives/src/transaction/mod.rs

Lines 1035 to 1047 in 36de90f

	/// Signed transaction.
	#[cfg_attr(any(test, feature = "reth-codec"), reth_codecs::add_arbitrary_tests(rlp))]
	#[derive(Debug, Clone, PartialEq, Eq, Hash, AsRef, Deref, Serialize, Deserialize)]
	pub struct TransactionSigned {
	/// Transaction hash
	pub hash: TxHash,
	/// The transaction signature values
	pub signature: Signature,
	/// Raw transaction info
	#[deref]
	#[as_ref]
	pub transaction: Transaction,
	}

in favour of alloy_consensus::Signed<T, S>. In order to limit scope, it's recommended to introduce type alias

pub type TransactionSigned = Signed<reth_primitives::Transaction, alloy_primitives::Signature>;

blocked by #11253

Additional context

No response

[emhane]

Starting with turning TransactionSigned into a wrapper of alloy type should unblock this

#[derive(derive_more::Deref)]
pub struct TransactionSigned {
    #[deref]
    inner: Signed<Transaction, Signature>
}

[klkvr]

current TransactionSigned is a bit different from how alloy handles transaction enums: https://github.com/alloy-rs/alloy/blob/de2a13340303db6dde1296f68df57078a5b1fdd8/crates/consensus/src/transaction/envelope.rs#L93-L115

there might be valid transactions with no signatures, eg right now we keep a dummy signature for deposit tx which is never encoded

should we consider refactoring TransactionSigned into an enum or embedding alloy's envelope right away?