Split extra dependencies and dependency groups

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 84.48%. Comparing base (ec95cd3) to head (0a9be65).

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #1238 +/- ## ======================================= Coverage 84.48% 84.48% ======================================= Files 92 92 Lines 5962 5962 ======================================= Hits 5037 5037 Misses 925 925 ```

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[fepegar]

Waiting for this to be merged:

• https://github.com/readthedocs/readthedocs.org/issues/11766