[Module] Update preproc n4, gibbs and normalize

[arnaudbore]

Type of improvement

If submitting a new module or fixing a bug, please use the appropriate template.

• Documentation
• Development tools (e.g. linter, formatter, etc.)
• Development container
• Global update (please specify)
• Other (please specify)

Describe your improvement

Migrate module preproc/n4 gibbs normalize to scilpy 2.0.1 and nf-test framework.

Checklist before requesting a review

• Ensure the syntax is correct (EditorConfig and Prettier must pass)
• Run the test suites if your changes affect any module
• Regenerate the Poetry lock file if you have updated the dependencies
• Ensure the documentation is up-to-date

#79 #114

[AlexVCaron]

Nothing to say, everything's perfect 🚀

[gagnonanthony]

Great job! I left a small comment, but other than that, it seems pretty good to me! 🍻