[Medium/Large Impact Change]: Update the code in all python repos to use a more modern standard #15

Description

As an org, we use Python 3.10, which is EOL on 31.10.2026. Following this issue, all python code should be updated to a much more modern standard.

We should use this time to also make use of the ruff modernise linting rule

Related issues and PRs

TBC

Impact radius

Large

Impact on developers and users

Aside from updating the code, the system should remain broadly the same.

Useful coordination

Subject to discussion.

Testing suggestions and/or changes needed in testing

Testing should remain broadly the same.

Anything else?

No response