Fix 1.3.1 release

[LucVV]

Proposed change

The release of version 1.3.1 failed to upload to PiPY. This seems to be due to two problems

1. We did not update the version number in __init__.py
2. Missing metadata in the PyPi upload resulting in an InvalidDistribution error in the GitHub action, likely due to an outdated version of pypa/gh-action-pypi-publish in python_publish.yaml

This PR adresses both:

1. The version number in __init__.py is updated to '1.3.1'.
2. The the version of pypa/gh-action-pypi-publish is updated to v1.12.3, in which the missing metadata should be fixed.

Type of change

• Example (a notebook demonstrating how to use ZOSPy for a specific application)
• Bugfix (non-breaking change which fixes an issue)
• New analysis (a wrapper around an OpticStudio analysis)
• New feature (other than an analysis)
• Breaking change (fix/feature causing existing functionality to break)
• Code quality improvements to existing code or addition of tests
• Documentation (improvement of either the docstrings or the documentation website)

Additional information

• Python version: 3.11
• OpticStudio version: 20.3.2

Related issues

#112

Checklist

• I have followed the contribution guidelines
• The code has been linted, formatted and tested locally using tox.
• Local tests pass. Please fix any problems before opening a PR. If this is not possible, specify what doesn't work and why you can't fix it.
• I added new tests for any features contributed, or updated existing tests.
• I updated CHANGELOG.md with my changes (except for refactorings and changes in the documentation).

If you contributed an analysis:

• I did not use AttrDicts for the analysis result data (please use dataclasses instead).

If you contributed an example:

• I contributed my example as a Jupyter notebook.

[crnh]

@LucVV did you run the test publish workflow to test if the problem has been solved?

Instead of exactly specifying v1.12.3, you should also be able to specify v1. This should always use the latest non-breaking version of the action.

[LucVV]

I changed from pypa/gh-action-pypi-publish@v1.12.3 to pypa/gh-action-pypi-publish@release/v1 , which should use the latest stagble release. The test publish workflow seems to work as intended with that.