Add s3fs

[RondeauG]

Pull Request Checklist:

• This PR addresses an already opened issue (for bug fixes / features)
  • This PR fixes s3fs missing from pyproject #35
• (If applicable) Documentation has been added / updated (for bug fixes / features).
• (If applicable) Tests have been added.
• CHANGES.rst has been updated (with summary of main changes).
  • Link to issue (:issue:number) and pull request (:pull:number) has been added.

What kind of change does this PR introduce?

• Add s3fs to environment-dev and pyproject.toml.
• Adds a Personal Access Token to the actions-version-updater.yml

Does this PR introduce a breaking change?

No.

Other information:

@sebastienlanglois The requirements in general will need some love, but I think that it would be better if you're the one to do it. Even going back to v0.2.10, there are inconsistencies between environment.yml, setup.py, and requirements.txt, so it's hard to know what's really required or not...

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[RondeauG]

• The relevant author information has been added to AUTHORS.rst and .zenodo.json.

I'll keep that for when I actually contribute. This is just a very small requirement fix.