chore: anndata 0.11 as min

[ilan-gold]

Prerequisite for #4038

• Closes #
• Tests included or not required because:

• Release notes not necessary because:

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 79.68%. Comparing base (9b43cc7) to head (e493063).
✅ All tests successful. No failed tests found.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #4191      +/-   ##
==========================================
- Coverage   79.74%   79.68%   -0.06%     
==========================================
  Files         120      120              
  Lines       12852    12844       -8     
==========================================
- Hits        10249    10235      -14     
- Misses       2603     2609       +6     

Flag	Coverage Δ
hatch-test.low-vers	78.80% <100.00%> (-0.01%)	⬇️
hatch-test.pre	79.64% <100.00%> (+0.05%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

Files with missing lines	Coverage Δ
src/scanpy/_utils/__init__.py	75.35% <100.00%> (+<0.01%)	⬆️

... and 2 files with indirect coverage changes