CI updates

[edublancas]

Describe your changes

• linting with pkgmt lint
• migrating to doc/environment.yml
• updating docs config, deletes tasks.py
• renames docs -> doc
• reduces examples runtime

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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📚 Documentation preview 📚: https://sklearn-evaluation--322.org.readthedocs.build/en/322/

[coveralls]

Pull Request Test Coverage Report for Build 4462734645

Warning: This coverage report may be inaccurate.

We've detected an issue with your CI configuration that might affect the accuracy of this pull request's coverage report.
To ensure accuracy in future PRs, please see these guidelines.
A quick fix for this PR: rebase it; your next report should be accurate.

• 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 94.404%

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Totals
Change from base Build 4462552595:	0.0%
Covered Lines:	3661
Relevant Lines:	3878

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💛 - Coveralls