[FIX] pin nibabel version

[bpinsard]

to avoid a bunch of enhanced dicoms issues, notably through dcmstack.
eg.

dcmstack.dcmmeta.InvalidExtensionError: The extension is not valid: Missing required base classification time

should be fixed.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 82.48%. Comparing base (2eb5291) to head (a3d69d8).

Additional details and impacted files

@@           Coverage Diff           @@
##           master     #800   +/-   ##
=======================================
  Coverage   82.48%   82.48%           
=======================================
  Files          42       42           
  Lines        4323     4323           
=======================================
  Hits         3566     3566           
  Misses        757      757           

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[bpinsard]

looks like nibabel drop 3.8 support, should heudiconv do the same? @yarikoptic

[yarikoptic]

looks like nibabel drop 3.8 support, should heudiconv do the same? @yarikoptic

I guess we could.

• chore!: drop support and testing for EOLed Python 3.8 #801

[yarikoptic]

remind me -- why we did not have that issue before? if that is just a buggy singular nibabel version - we better just exclude that one

[bpinsard]

Forgot to note the version that was causing this issue before upgrading, but has been there for a while #455 (comment) and my environment wasn't that old. Also we had nipy/nibabel#1378 recently merge that solved failing tests.