Add linter ruff

[amandazhuyilan]

Description

This pull request adds the linter ruff in this repository.

This Pull Request will be rebased after #4 is merged.

Changes

• Installation of ruff in pyproject.toml
• Installation and running ruff in Github Actions
• Unlinted code is now updated

Checklist

• I have commented my code, particularly in hard-to-understand areas
• I have added unit / integration tests that prove my fix is effective or that my feature works
• I have run all tests locally and they pass
• I have updated the documentation (if applicable)

How to Test Manually (if necessary)

All Github Action tests shall pass.

[marius-mather]

Looks good, just a bit of config to clean up

[marius-mather]

Thanks, looks good!