chore: Update minimum dependencies, test with tox-uv

[effigies]

This is narrowly targeted to get tests passing.

Python 3.13 support depends on a new release of sdcflows. Will work on that today.

[codecov]

Codecov Report

Attention: Patch coverage is 50.00000% with 4 lines in your changes missing coverage. Please review.

Project coverage is 72.32%. Comparing base (3e77638) to head (e6b5fcb).
Report is 10 commits behind head on master.

Files with missing lines	Patch %	Lines
fmriprep/config.py	0.00%	3 Missing ⚠️
fmriprep/utils/telemetry.py	0.00%	1 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff             @@
##           master    #3412       +/-   ##
===========================================
+ Coverage   48.38%   72.32%   +23.94%     
===========================================
  Files          57       57               
  Lines        4233     4267       +34     
  Branches      456      545       +89     
===========================================
+ Hits         2048     3086     +1038     
+ Misses       2115     1065     -1050     
- Partials       70      116       +46     

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