## Description 

Fixes a bug when checking the total number of transactions included in a
block via the transactions consumer in consensus. It would be possible
to go over the max limit and effectively produce invalid blocks when it
would verify on the block verifier side.

Also took this as opportunity to have an integration test that checks
both the construction of block sizes and the block verifier so makes
sure we are always aligned.

Added a couple of more soft bundle related metrics

## Test plan 

CI

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## Release notes

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

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Co-authored-by: Mingwei Tian <mingwei@mystenlabs.com>