pins jupyter-book

[edublancas]

Describe your changes

Issue ticket number and link

Closes #x

Checklist before requesting a review

• [ ] I have performed a self-review of my code
• [ ] I have added thorough tests (when necessary).
• [ ] I have added the right documentation in the docstring and changelog (when needed)

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:books: Documentation preview :books:: https://sklearn-evaluation--310.org.readthedocs.build/en/310/

[coveralls]

Pull Request Test Coverage Report for Build 4306150479

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at 90.93%

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Totals
Change from base Build 4296301858:	0.0%
Covered Lines:	3118
Relevant Lines:	3429

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💛 - Coveralls