Fix: DataValidationError of pipenv

[Samk13]

:heart: Thank you for your contribution!

Description

https://github.com/pypa/pipenv/issues/6173

Checklist

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• [ ] I'm aware of the code of conduct.
• [ ] I've created logical separate commits and followed the commit message format.
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• [ ] I've marked translation strings.
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[utnapischtim]

created a PR also for the cookiecutter package https://github.com/inveniosoftware/cookiecutter-invenio-rdm/pull/283