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/beacon_chain/src/blob_verification.rs

@@ -499,7 +499,7 @@ impl<T: EthSpec> KzgVerifiedBlob<T> {
 /// Returns an error if the kzg verification check fails.
 pub fn verify_kzg_for_blob<T: EthSpec>(
     blob: Arc<BlobSidecar<T>>,
-    kzg: &Kzg<T::Kzg>,
+    kzg: &Kzg,
 ) -> Result<KzgVerifiedBlob<T>, AvailabilityCheckError> {
     let _timer = crate::metrics::start_timer(&crate::metrics::KZG_VERIFICATION_SINGLE_TIMES);
     if validate_blob::<T>(kzg, &blob.blob, blob.kzg_commitment, blob.kzg_proof)
@@ -518,7 +518,7 @@ pub fn verify_kzg_for_blob<T: EthSpec>(
 /// in a loop since this function kzg verifies a list of blobs more efficiently.
 pub fn verify_kzg_for_blob_list<T: EthSpec>(
     blob_list: &BlobSidecarList<T>,
-    kzg: &Kzg<T::Kzg>,
+    kzg: &Kzg,
 ) -> Result<(), AvailabilityCheckError> {
     let _timer = crate::metrics::start_timer(&crate::metrics::KZG_VERIFICATION_BATCH_TIMES);
     let (blobs, (commitments, proofs)): (Vec<_>, (Vec<_>, Vec<_>)) = blob_list