Add PIE and B lints

[flying-sheep]

Also sort lints. learnings:

• B028 no-explicit-stacklevel: the suggested “2” is for user-facing functions, one has to add 1 depending how deep in the stack one is
• B905 zip-without-explicit-strict: should almost always be strict=True, not as autofixed False (except for cyclers)
• B904 raise-without-from-inside-except: should almost always be raise … from e, except when using an exception instead of a check (i.e. the caught exception isn’t an error, but an expected branching)

[codecov]

Codecov Report

Attention: Patch coverage is 59.34066% with 74 lines in your changes missing coverage. Please review.

Project coverage is 75.48%. Comparing base (f11789e) to head (413cc48).
Report is 45 commits behind head on main.

✅ All tests successful. No failed tests found.

Files with missing lines	Patch %	Lines
src/scanpy/readwrite.py	90.16%	6 Missing ⚠️
src/scanpy/_utils/__init__.py	60.00%	4 Missing ⚠️
src/scanpy/external/tl/_phenograph.py	0.00%	4 Missing ⚠️
src/scanpy/queries/_queries.py	0.00%	4 Missing ⚠️
src/scanpy/external/pp/_magic.py	0.00%	3 Missing ⚠️
src/scanpy/tools/_sim.py	50.00%	3 Missing ⚠️
src/scanpy/external/exporting.py	0.00%	2 Missing ⚠️
src/scanpy/external/pl.py	0.00%	2 Missing ⚠️
src/scanpy/external/pp/_bbknn.py	0.00%	2 Missing ⚠️
src/scanpy/external/pp/_dca.py	0.00%	2 Missing ⚠️
... and 26 more

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #3573      +/-   ##
==========================================
- Coverage   75.51%   75.48%   -0.04%     
==========================================
  Files         113      113              
  Lines       13178    13169       -9     
==========================================
- Hits         9952     9941      -11     
- Misses       3226     3228       +2     

Files with missing lines	Coverage Δ
src/scanpy/_compat.py	76.99% <100.00%> (ø)
src/scanpy/_version.py	100.00% <ø> (ø)
src/scanpy/cli.py	89.87% <100.00%> (-3.88%)	⬇️
...c/scanpy/experimental/pp/_highly_variable_genes.py	62.73% <ø> (ø)
src/scanpy/experimental/pp/_normalization.py	94.04% <ø> (ø)
src/scanpy/experimental/pp/_recipes.py	100.00% <100.00%> (ø)
src/scanpy/metrics/_common.py	91.25% <ø> (ø)
src/scanpy/plotting/_baseplot_class.py	88.92% <ø> (ø)
src/scanpy/plotting/_preprocessing.py	87.71% <ø> (ø)
src/scanpy/plotting/_tools/scatterplots.py	84.25% <100.00%> (ø)
... and 46 more