Pin ruff 0.16.0

[tien-tong]

Closes #397.

[codecov-commenter]

Codecov Report

❌ Patch coverage is 72.05882% with 19 lines in your changes missing coverage. Please review.
✅ Project coverage is 79.16%. Comparing base (552a1b5) to head (ab5f8dd).

Files with missing lines	Patch %	Lines
babs/check_setup.py	20.00%	7 Missing and 1 partial ⚠️
babs/utils.py	76.47%	3 Missing and 1 partial ⚠️
babs/scheduler.py	25.00%	3 Missing ⚠️
babs/merge.py	75.00%	2 Missing ⚠️
babs/base.py	80.00%	1 Missing ⚠️
babs/system.py	0.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #398      +/-   ##
==========================================
- Coverage   79.29%   79.16%   -0.13%     
==========================================
  Files          17       17              
  Lines        2178     2155      -23     
  Branches      385      380       -5     
==========================================
- Hits         1727     1706      -21     
+ Misses        308      307       -1     
+ Partials      143      142       -1     

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