Fix CI failure in docs

[DimitriPapadopoulos]

Sphinx ≥ 8.2 requires apidoc ≥ 0.6.0

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 70.58%. Comparing base (abeedf0) to head (3cd89e0).
⚠️ Report is 67 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #533      +/-   ##
==========================================
- Coverage   70.87%   70.58%   -0.29%     
==========================================
  Files          25       25              
  Lines        2067     2091      +24     
  Branches      268      274       +6     
==========================================
+ Hits         1465     1476      +11     
- Misses        544      556      +12     
- Partials       58       59       +1     

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[effigies]

Looks like it works. Thanks!

https://output.circle-artifacts.com/output/job/222719a7-c3af-40d4-a9a9-6feac5c7de66/artifacts/0/noversion/api/smriprep.workflows.anatomical.html