nightly-2024-10-23: chore: remove usage of slices in pedersen hash (#6295)

# Description

## Problem\*

Resolves <!-- Link to GitHub Issue -->

## Summary\*

This PR reworks the pedersen hash implementation to work on arrays as
this removes some brillig overhead.

## Additional Context



## Documentation\*

Check one:
- [x] No documentation needed.
- [ ] Documentation included in this PR.
- [ ] **[For Experimental Features]** Documentation to be submitted in a
separate PR.

# PR Checklist\*

- [x] I have tested the changes locally.
- [x] I have formatted the changes with [Prettier](https://prettier.io/)
and/or `cargo fmt` on default settings.