(chore): extract verbosity

[flying-sheep]

No description provided.

[codecov]

Codecov Report

Attention: Patch coverage is 80.32787% with 12 lines in your changes missing coverage. Please review.

Project coverage is 76.02%. Comparing base (45ac804) to head (37c2f33).
Report is 1 commits behind head on main.

✅ All tests successful. No failed tests found.

Files with missing lines	Patch %	Lines
src/scanpy/_settings/verbosity.py	82.05%	7 Missing ⚠️
src/scanpy/_settings/__init__.py	75.00%	5 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #3683      +/-   ##
==========================================
- Coverage   76.03%   76.02%   -0.01%     
==========================================
  Files         116      117       +1     
  Lines       12544    12543       -1     
==========================================
- Hits         9538     9536       -2     
- Misses       3006     3007       +1     

Files with missing lines	Coverage Δ
src/scanpy/logging.py	97.32% <100.00%> (ø)
src/scanpy/_settings/__init__.py	85.60% <75.00%> (ø)
src/scanpy/_settings/verbosity.py	82.05% <82.05%> (ø)