## Description 

The fields in the `CertificateProof::Consensus` variant is chosen to
enhance debuggability (including the transaction's position in the DAG:
round, authority index, transaction index), without unnecessary data
(consensus block digest is excluded).

## Test plan 

CI

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## Release notes

Check each box that your changes affect. If none of the boxes relate to
your changes, release notes aren't required.

For each box you select, include information after the relevant heading
that describes the impact of your changes that a user might notice and
any actions they must take to implement updates.

- [ ] Protocol: 
- [ ] Nodes (Validators and Full nodes): 
- [ ] Indexer: 
- [ ] JSON-RPC: 
- [ ] GraphQL: 
- [ ] CLI: 
- [ ] Rust SDK:
- [ ] REST API: