Update dependency pins, fix typo

[Zeitsperre]

Pull Request Checklist:

• This PR addresses an already opened issue (for bug fixes / features)
  • This PR fixes #xyz
• Tests for the changes have been added (for bug fixes / features)
  • (If applicable) Documentation has been added / updated (for bug fixes / features)
• CHANGELOG.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?

• Synchronizes dependencies between pyproject.toml and environment.yml
• Sets a few pins to their latest versions
• Fixes a small typo in cli.py
• Fixes an issue with the latest version of dask (2024.8.0)

Does this PR introduce a breaking change?

No.

Other information:

We currently have poppler (for PDF generation) listed as a dependency in the environment.yml. I'm going to see if things break when removing it.

[github-actions]

Note

It appears that this Pull Request modifies the main.yml workflow.

On inspection, the XCLIM_TESTDATA_BRANCH environment variable is set to the most recent tag (v2023.12.14).

No further action is required.

[Zeitsperre]

@aulemahal Just needs your approval and we are good to merge!