feat(api): update axum to 0.6

[DaughterOfMars]

Linked Issues

• Closes Tracking Issue - update_axum #945

Notes to Reviewer

As a reviewer, please pay particular attention to the following areas when reviewing this PR and tick the above boxes after you have completed the steps.

API Changes

• Test the API endpoints which were added/changed.
• Ensure that the API response times scale with database size appropriately.
• Review the API documentation changes and confirm that it matches the actual functionality.
• Check for breaking changes in the API and matching (conventional) commit message prefix.

INX Changes

• Run chronicle using an INX connection.