Offloading KZG Proof Computation from the beacon node (#7117)

Addresses #7108

- Add EL integration for `getPayloadV5` and `getBlobsV2`
- Offload proof computation and use proofs from EL RPC APIs

beacon_node/beacon_chain/src/historical_blocks.rs

@@ -132,7 +132,7 @@ impl<T: BeaconChainTypes> BeaconChain<T> {
                 AvailableBlockData::Blobs(..) => {
                     new_oldest_blob_slot = Some(block.slot());
                 }
-                AvailableBlockData::DataColumns(_) | AvailableBlockData::DataColumnsRecv(_) => {
+                AvailableBlockData::DataColumns(_) => {
                     new_oldest_data_column_slot = Some(block.slot());
                 }
             }