Snowbridge Ethereum Deneb fork preparation (#3029)

- Prepares for the Deneb hardfork on Sepolia testnet on 31 January
(needs to be deployed to Rococo before then)
- Removes `beacon-minimal-spec` flag for simpler config
- Adds test comments

---------

Co-authored-by: Ron <yrong1997@gmail.com>
Co-authored-by: claravanstaden <Cats 4 life!>
Co-authored-by: Alistair Singh <alistair.singh7@gmail.com>

bridges/snowbridge/parachain/primitives/router/Cargo.toml

@@ -30,7 +30,7 @@ xcm-executor = { package = "staging-xcm-executor", path = "../../../../../polkad
 
 snowbridge-core = { path = "../core", default-features = false }
 
-ethabi = { git = "https://github.com/Snowfork/ethabi-decode.git", package = "ethabi-decode", branch = "master", default-features = false }
+ethabi = { package = "ethabi-decode", version = "1.0.0", default-features = false }
 
 hex-literal = { version = "0.4.1" }
 

bridges/snowbridge/parachain/primitives/router/src/inbound/tests.rs

@@ -2,7 +2,7 @@ use super::GlobalConsensusEthereumConvertsFor;
 use crate::inbound::CallIndex;
 use frame_support::parameter_types;
 use hex_literal::hex;
-use xcm::v4::prelude::*;
+use xcm::prelude::*;
 use xcm_executor::traits::ConvertLocation;
 
 const NETWORK: NetworkId = Ethereum { chain_id: 11155111 };

bridges/snowbridge/parachain/primitives/router/src/outbound/mod.rs

@@ -16,7 +16,7 @@ use snowbridge_core::{
 };
 use sp_core::{H160, H256};
 use sp_std::{iter::Peekable, marker::PhantomData, prelude::*};
-use xcm::v4::prelude::*;
+use xcm::prelude::*;
 use xcm_executor::traits::{ConvertLocation, ExportXcm};
 
 pub struct EthereumBlobExporter<