Updated publish CI/CD workflow

[d-kleine]

Description

• updates the GitHub Actions publish workflow to reference the latest versions of actions used in the steps section under uses to improve performance, security, and compatibility with the latest GitHub Actions features.
• fixes typo in PR template

Related issues or pull requests

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Pull Request Checklist

• Added a note about the modification or contribution to the ./docs/sources/CHANGELOG.md file (if applicable)
• Added appropriate unit test functions in the ./mlxtend/*/tests directories (if applicable)
• Modify documentation in the corresponding Jupyter Notebook under mlxtend/docs/sources/ (if applicable)
• Ran PYTHONPATH='.' pytest ./mlxtend -sv and make sure that all unit tests pass (for small modifications, it might be sufficient to only run the specific test file, e.g., PYTHONPATH='.' pytest ./mlxtend/classifier/tests/test_stacking_cv_classifier.py -sv)
• Checked for style issues by running flake8 ./mlxtend

[d-kleine]

You might also take a look into the run, there is a new trusted publisher for the workflow. For that, you need to log in PyPi 🙂
https://github.com/rasbt/mlxtend/actions/runs/11685967528

[d-kleine]

@rasbt ready for review

[rasbt]

This looks good, thanks for the bump!

You might also take a look into the run, there is a new trusted publisher for the workflow. For that, you need to log in PyPi 🙂
https://github.com/rasbt/mlxtend/actions/runs/11685967528

✅