Update CI

[IvanaEscobar]

Updates CI for Python versions 3.11, 3.12, and 3.13:

• GitHub Actions were deprecated v2/3 --> v4
• specify zarr version, other test_env versions
• removed versioneer and put setuptools-scm in place
• fixed issue Python 3.13 incompatibility: del arg_values['frame'] #343
• added regex string literals
• commented out deprecated ECCO Portal paths
• works with Codecov v4 Actions

[mjlosch]

@IvanaEscobar thanks for that! The CI tests are all passing now and we should merge this PR as soon as possible, so that other PRs can be tested and moved forward. This is a big step forward!

As I am no expert (neither python, CI, nor xmitgcm), I can only work on obvious bug fixes.

I will merge this tomorrow, if there are no objections.

[mjlosch]

also fixes issue #345

[mjlosch]

@IvanaEscobar do you have anything else to add, or should I try to merge this now?

[IvanaEscobar]

@mjlosch it's ready for merging

[mjlosch]

@IvanaEscobar
In the notes it still says

NOTE: does not fix codecov

is that this valid after the lastest 3 commits?

[IvanaEscobar]

Good catch, I updated the description to remove that note. Codecov works as long as there is a token provided as an Action Secret.