FIX: Match mask header prior to n4 correction

[mgxd]

Closes #442

Some affine skewing may occur after DenoiseImage, which can cause the t2w mask and template to differ enough to make N4BiasCorrection upset. This ensures the mask and template have the same header prior to N4 correction leveraging the mask to localize intensity rescaling.

As of niworkflows 1.12.2, MatchHeader will just emit a warning if a significant difference is found - opened nipreps/niworkflows#924 with plans to restrict tolerance in a future release

[codecov]

Codecov Report

Attention: Patch coverage is 50.00000% with 1 line in your changes missing coverage. Please review.

Project coverage is 56.44%. Comparing base (30b0d57) to head (996d704).
Report is 12 commits behind head on master.

Files with missing lines	Patch %	Lines
nibabies/workflows/anatomical/surfaces.py	50.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #443      +/-   ##
==========================================
- Coverage   56.45%   56.44%   -0.01%     
==========================================
  Files          70       70              
  Lines        6719     6721       +2     
  Branches      828      828              
==========================================
+ Hits         3793     3794       +1     
- Misses       2717     2718       +1     
  Partials      209      209              

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