Rely on scanpydoc for prose return sections

[flying-sheep]

• Closes N/A
• Tests included or not required because:

• Release notes not necessary because: docs change

Also bump scanpydoc so the [source] links for wrapped functions work.

E.g. sc.pp.filter_cells now links to the correct code lines):

-<a href="https://github.com/scverse/scanpy/tree/419c1a45aef26b5531a5b9cf1ec430e5ae67ce97/python3.11/site-packages/legacy_api_wrap/__init__.py#L49-L193">[source]</a>
+<a href="https://github.com/scverse/scanpy/tree/2d5bda1e45525354b9b751aa572c0b08175450cf/scanpy/preprocessing/_simple.py#L49-L193">[source]</a>

[codecov]

Codecov Report

Attention: 1 lines in your changes are missing coverage. Please review.

Comparison is base (9b08d35) 72.84% compared to head (2d5bda1) 72.84%.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #2800      +/-   ##
==========================================
- Coverage   72.84%   72.84%   -0.01%     
==========================================
  Files         111      111              
  Lines       12367    12368       +1     
==========================================
  Hits         9009     9009              
- Misses       3358     3359       +1     

Files	Coverage Δ
scanpy/experimental/pp/_highly_variable_genes.py	63.46% <ø> (ø)
scanpy/external/pp/_hashsolo.py	89.74% <100.00%> (ø)
scanpy/external/pp/_scrublet.py	92.38% <ø> (ø)
scanpy/neighbors/__init__.py	77.47% <100.00%> (ø)
scanpy/preprocessing/_highly_variable_genes.py	96.17% <ø> (ø)
scanpy/tools/_dpt.py	59.32% <100.00%> (ø)
scanpy/tools/_paga.py	33.33% <ø> (ø)
scanpy/plotting/_baseplot_class.py	89.88% <85.71%> (-0.26%)	⬇️