FIX: Use tissue segmentations for FS recon-all

[mgxd]

The recon-all workflow uses the tissue segmentations, not an aseg, for brainmask refinement.

[codecov]

Codecov Report

Attention: Patch coverage is 0% with 4 lines in your changes missing coverage. Please review.

Project coverage is 33.12%. Comparing base (7b1e91d) to head (cf7a401).
Report is 172 commits behind head on master.

Files	Patch %	Lines
nibabies/workflows/anatomical/base.py	0.00%	4 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #356      +/-   ##
==========================================
- Coverage   33.14%   33.12%   -0.03%     
==========================================
  Files          55       55              
  Lines        5340     5344       +4     
==========================================
  Hits         1770     1770              
- Misses       3570     3574       +4     

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