Enable ruff/bugbear rules (B) and fix issues

[DimitriPapadopoulos]

Start working on https://github.com/zarr-developers/zarr-python/discussions/1701.

TODO:

• [ ] Add unit tests and/or doctests in docstrings
• [ ] Add docstrings and API docs for any new/modified user-facing classes and functions
• [ ] New/modified features documented in docs/tutorial.rst
• [x] Changes documented in docs/release.rst
• [x] GitHub Actions have all passed
• [x] Test coverage is 100% (Codecov passes)

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 99.98%. Comparing base (360eb53) to head (9076b8a).

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #1702   +/-   ##
=======================================
  Coverage   99.98%   99.98%           
=======================================
  Files          38       38           
  Lines       14667    14667           
=======================================
  Hits        14665    14665           
  Misses          2        2           

Files	Coverage Δ
zarr/_storage/absstore.py	100.00% <100.00%> (ø)
zarr/_storage/v3_storage_transformers.py	100.00% <100.00%> (ø)
zarr/core.py	100.00% <100.00%> (ø)
zarr/creation.py	100.00% <100.00%> (ø)
zarr/hierarchy.py	99.79% <100.00%> (ø)
zarr/indexing.py	100.00% <100.00%> (ø)
zarr/meta.py	100.00% <100.00%> (ø)
zarr/n5.py	100.00% <100.00%> (ø)
zarr/storage.py	100.00% <100.00%> (ø)
zarr/tests/test_meta.py	100.00% <100.00%> (ø)
... and 3 more

[joshmoore]

Re-run of the one failing job has now gone green.