Feat: add `latest` shortcut as targeted era for Cardano CLI commands

[dlachaume]

Content

This PR includes an update to the Cardano CLI calls by adding the latest shortcut as a targeted era for Cardano CLI commands.

Pre-submit checklist

• Branch
  • [x] Tests are provided (if possible)
  • [x] Crates versions are updated (if relevant)
  • [ ] CHANGELOG file is updated (if relevant)
  • [x] Commit sequence broadly makes sense
  • [x] Key commits have useful messages
• PR
  • [x] No clippy warnings in the CI
  • [x] Self-reviewed the diff
  • [x] Useful pull request description
  • [x] Reviewer requested
• Documentation
  • [ ] Update README file (if relevant)
  • [ ] Update documentation website (if relevant)
  • [ ] Add dev blog post (if relevant)

Issue(s)

Closes #2072

[github-actions[bot]]

Test Results

    4 files  ±0     51 suites  ±0   10m 35s ⏱️ -7s 1 418 tests ±0  1 418 ✅ ±0  0 💤 ±0  0 ❌ ±0  1 629 runs  ±0  1 629 ✅ ±0  0 💤 ±0  0 ❌ ±0 

Results for commit 9f75399b. ± Comparison against base commit 49a411c8.

:recycle: This comment has been updated with latest results.