Bump ruff and fix errors

[janosh]

No description provided.

[codecov]

Codecov Report

Attention: Patch coverage is 83.33333% with 1 lines in your changes are missing coverage. Please review.

Project coverage is 99.42%. Comparing base (3abce79) to head (7215d42).
Report is 3 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #593      +/-   ##
==========================================
- Coverage   99.42%   99.42%   -0.01%     
==========================================
  Files          21       21              
  Lines        1570     1568       -2     
  Branches      426      425       -1     
==========================================
- Hits         1561     1559       -2     
  Misses          9        9              

Files	Coverage Δ
src/jobflow/core/flow.py	100.00% <100.00%> (ø)
src/jobflow/core/job.py	100.00% <100.00%> (ø)
src/jobflow/core/maker.py	100.00% <100.00%> (ø)
src/jobflow/core/reference.py	100.00% <100.00%> (ø)
src/jobflow/utils/uid.py	81.57% <0.00%> (ø)