Missing values in `/eth/v1/config/spec`

[eth2353]

Some values are missing from this endpoint:

ATTESTATION_DUE_BPS, AGGREGATE_DUE_BPS, SYNC_MESSAGE_DUE_BPS, CONTRIBUTION_DUE_BPS

I tried using the latest unstable image.

Relates to ethereum/consensus-specs#4476

[hangleang]

We haven't yet merge ePBS changes into stable branch

[eth2353]

The specific values above are not related to ePBS, they were part of the Fusaka spec already ( eth-clients/mainnet#11 ) when e.g. SECONDS_PER_SLOT was deprecated.

The Gloas fork/ePBS contains different values (which I am not asking for in this issue) - ATTESTATION_DUE_BPS_GLOAS, AGGREGATE_DUE_BPS_GLOAS, SYNC_MESSAGE_DUE_BPS_GLOAS, CONTRIBUTION_DUE_BPS_GLOAS, PAYLOAD_ATTESTATION_DUE_BPS

[hangleang]

I have made a PR #558, though we don't use the values