Upgrade to v1.4.0-beta.3 (#4862)

## Issue Addressed

Makes lighthouse compliant with new kzg changes in https://github.com/ethereum/consensus-specs/releases/tag/v1.4.0-beta.3

## Proposed Changes

1. Adds new official trusted setup
2. Refactors kzg to match upstream changes in https://github.com/ethereum/c-kzg-4844/pull/377
3. Updates pre-generated `BlobBundle` to work with official trusted setup. ~~Using json here instead of ssz to account for different value of `MaxBlobCommitmentsPerBlock` in minimal and mainnet. By using json, we can just use one pre generated bundle for both minimal and mainnet. Size of 2 separate ssz bundles is approximately equal to one json bundle cc @jimmygchen~~ 
Dunno what I was doing, ssz works without any issues  
4. Stores trusted_setup as just bytes in eth2_network_config so that we don't have kzg dependency in that lib and in lcli. 


Co-authored-by: realbigsean <seananderson33@gmail.com>
Co-authored-by: realbigsean <seananderson33@GMAIL.com>

beacon_node/execution_layer/src/test_utils/mod.rs

@@ -107,7 +107,7 @@ impl<T: EthSpec> MockServer<T> {
     pub fn new_with_config(
         handle: &runtime::Handle,
         config: MockExecutionConfig,
-        kzg: Option<Kzg<T::Kzg>>,
+        kzg: Option<Kzg>,
     ) -> Self {
         let MockExecutionConfig {
             jwt_key,
@@ -188,7 +188,7 @@ impl<T: EthSpec> MockServer<T> {
         terminal_block_hash: ExecutionBlockHash,
         shanghai_time: Option<u64>,
         cancun_time: Option<u64>,
-        kzg: Option<Kzg<T::Kzg>>,
+        kzg: Option<Kzg>,
     ) -> Self {
         Self::new_with_config(
             handle,