Update kzg interface

[pawanjay176]

Issue Addressed

Resolves #4076

Proposed Changes

Updates the kzg interface for freeing the blobs.

[pawanjay176]

@jimmygchen Not able to request you as reviewer for some reason.

[divagant-martian]

after this Pr the main branch no longer checks.
Doing cargo clean and then cargo check produces

beacon_node/beacon_chain/src/beacon_chain.rs:4763:28: error[E0425]: cannot find function `compute_aggregate_kzg_proof` in module `kzg_utils`
beacon_node/beacon_chain/src/beacon_chain.rs:4777:24: error[E0425]: cannot find function `validate_blobs_sidecar` in module `kzg_utils`
beacon_node/beacon_chain/src/blob_verification.rs:138:20: error[E0425]: cannot find function `validate_blobs_sidecar` in module `kzg_utils`

[jimmygchen]

Thanks @pawanjay176 and @divagant-martian
I'll update my branch with @pawanjay176 's changes and this should fix the compilation error.

[pawanjay176]

Sorry for borking the base branch 😅 Didn't realise we still had all the kzg computation from coupling days.