Changelog - Leave commits in order

[vexx32]

PR Summary

Having commits grouped by name is nice, but it's better to have it just in order I think.

Changes

• Update GH username fetching to retry after a bit on failure.
• Avoid grouping items, so we don't get the semi-sorting behaviour.

Checklist

• Pull Request has a meaningful title.
• Summarised changes.
• Pull Request is ready to merge & is not WIP.
• Added tests / only testable interactively.
  • Make sure you add a new test if old tests do not effectively test the code changed.
• Added documentation / opened issue to track adding documentation at a later date.