Use ruff over black in the root

[mikeweltevrede]

PR Checklist

• [x] A description of the changes is added to the description of this PR.
• [N/A] If there is a related issue, make sure it is linked to this PR.
• [N/A] If you've fixed a bug or added code that should be tested, add tests!
• [N/A] Documentation in docs is updated

Description of changes

Some issues we encountered in ruff were also encountered by @fpgmaas in this project, namely that with a nested project structure like this ruff picks up both pyproject.toml files and you get a "nested alternate groups are not allowed" error, see for instance https://github.com/astral-sh/ruff/issues/9381. This is solved by passing the --config flag so that ruff only looks at the pyproject.toml file in the root. I took the settings for ruff from {{cookiecutter.project_name}}/.pre-commit-config.yaml

/.pre-commit-config.yaml`.

For the two issues found by ruff, I made the following fixes:

• subprocess-without-shell-equals-true (S603): Ignored. Following the documentation, this is prone to false positives. Even though the rule is called "subprocess-without-shell-equals-true", passing shell=True does not fix the hook.
• start-process-with-a-shell (S605): Ignored. This is a problem if we receive user input but we derive a path here from the OS. As such, no security risk.

[codecov[bot]]

Codecov Report

Attention: Patch coverage is 0% with 1 line in your changes missing coverage. Please review.

Project coverage is 0.00%. Comparing base (011f3cc) to head (e8ebf4f). Report is 1 commits behind head on main.

Files	Patch %	Lines
cookiecutter_poetry/cli.py	0.00%	1 Missing :warning:

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #112 +/- ## ===================================== Coverage 0.00% 0.00% ===================================== Files 1 1 Lines 5 5 ===================================== Misses 5 5 ```

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[fpgmaas]

Awesome, thanks @mikeweltevrede!