Cardano Updates

Removes [diff](https://github.com/kpdecker/jsdiff). It's no longer used after updating ancestor dependency [@lucid-evolution/lucid](https://github.com/Anastasia-Labs/lucid-evolution/tree/HEAD/packages/lucid). These dependencies need to be updated together.


Removes `diff`

Updates `@lucid-evolution/lucid` from 0.4.29 to 0.4.29
- [Release notes](https://github.com/Anastasia-Labs/lucid-evolution/releases)
- [Changelog](https://github.com/Anastasia-Labs/lucid-evolution/blob/main/packages/lucid/CHANGELOG.md)
- [Commits](https://github.com/Anastasia-Labs/lucid-evolution/commits/@lucid-evolution/[email protected]/packages/lucid)

---
updated-dependencies:
- dependency-name: diff
  dependency-version: 
  dependency-type: indirect
- dependency-name: "@lucid-evolution/lucid"
  dependency-version: 0.4.29
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <[email protected]>

I had a different rust version locally so therese weren't showing up.

- Used derive(Default) on SourceLocation
- Allow some unused assignments, because they're used by
  miette
- Add result_large_err to existing allow attribute

- Add #[allow(clippy::too_many_arguments)] to a few functions
- Rename to_string() to render()
- Add #[allow(clippy;type_complexity)] to collect_tests_for_coverage
- Fix a few unused variables
- Remove unused imports
- Fix needless_borrow in export command
- Use arrays instead of vec![] in tests
- Use !is_empty() instead of len() > 0