fix: array to scalar deprecation warning

[Rohitthakan]

Fixes #4339

Changes made in this Pull Request:
This PR fixes the array to scalar deprecation warning

PR Checklist

• Tests?
• Docs?
• CHANGELOG updated?
• Issue raised/referenced?

Developers certificate of origin

• I certify that this contribution is covered by the LGPLv2.1+ license as defined in our LICENSE and adheres to the Developer Certificate of Origin.

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📚 Documentation preview 📚: https://mdanalysis--4608.org.readthedocs.build/en/4608/

[pep8speaks]

Hello @Rohitthakan! Thanks for opening this PR. We checked the lines you've touched for PEP 8 issues, and found:

• In the file package/MDAnalysis/analysis/nuclinfo.py:

Line 217:80: E501 line too long (123 > 79 characters)

[github-actions]

Hello there first time contributor! Welcome to the MDAnalysis community! We ask that all contributors abide by our Code of Conduct and that first time contributors introduce themselves on GitHub Discussions so we can get to know you. You can learn more about participating here. Please also add yourself to package/AUTHORS as part of this PR.

[github-actions]

Linter Bot Results:

Hi @Rohitthakan! Thanks for making this PR. We linted your code and found the following:

Some issues were found with the formatting of your code.

Code Location	Outcome
main package	⚠️ Possible failure
testsuite	✅ Passed

Please have a look at the darker-main-code and darker-test-code steps here for more details: https://github.com/MDAnalysis/mdanalysis/actions/runs/9281691657/job/25538172389

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Please note: The black linter is purely informational, you can safely ignore these outcomes if there are no flake8 failures!

[RMeli]

@Rohitthakan, thank you for contributing to MDAnalysis. What is the reason for replacing the docstrings with a comment? Please revert these changes.

[orbeckst]

@RMeli could you please take on the role of PR shepherd? If it becomes to much, please say something and unassign yourself. Thanks!

[RMeli]

@Rohitthakan please also have a look at the tests, they are all failing.

[RMeli]

Hi @Rohitthakan, are you still working/interested in working on this?

[RMeli]

Closing for lack of replies. Please feel free to re-open if you are still working on it and want to move forward.