feat: Linter fails on 1.0 branch

[SemyonSinchenko]

Feature Type

• Adding new functionality to quinn

• Changing existing functionality in quinn

• Removing existing functionality in quinn

Problem Description

https://github.com/MrPowers/quinn/actions/runs/9935547834/job/27441930563

installing ruff from spec 'ruff==0.5.1'...
warning: The top-level linter settings are deprecated in favour of their counterparts in the `lint` section. Please update the following options in `pyproject.toml`:
  - 'isort' -> 'lint.isort'
quinn/schema_helpers.py:1[34](https://github.com/MrPowers/quinn/actions/runs/9935547834/job/27441930563#step:4:36):37: F821 Undefined name `Optional`
    |
132 |         return type_lookup[type_str]
133 | 
134 |     def _convert_nullable(null_str: Optional[str]) -> bool:
    |                                     ^^^^^^^^ F821
1[35](https://github.com/MrPowers/quinn/actions/runs/9935547834/job/27441930563#step:4:37) |         if null_str is None:
1[36](https://github.com/MrPowers/quinn/actions/runs/9935547834/job/27441930563#step:4:38) |             return True
    |

Found 1 error.
Error: Process completed with exit code 1.

Feature Description

Fix linter problems in 1.0

Additional Context

No response

[fpgmaas]

Should be solved by #251