chore: Bump minimum Python, rerun auto style fixes

[effigies]

Ruff is complaining that cli.parser shadows parser, which hasn't existed since Python 3.9. This bumps the minimum Python to 3.10, which shuts ruff up about that, and then it has auto-fixes for pyupgrade complaints.

[codecov]

Codecov Report

Attention: Patch coverage is 57.14286% with 3 lines in your changes missing coverage. Please review.

Project coverage is 30.59%. Comparing base (89c0110) to head (5cce6f5).
Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
src/fmripost_aroma/cli/workflow.py	0.00%	3 Missing ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##             main      #93   +/-   ##
=======================================
  Coverage   30.59%   30.59%           
=======================================
  Files          26       26           
  Lines        2363     2363           
  Branches      286      286           
=======================================
  Hits          723      723           
  Misses       1617     1617           
  Partials       23       23           

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