[RF] Fix cython 3 warnings

[skoudoro]

The PR fixes #3003.

It addresses all Cython 3.x warnings on DIPY codebases. it replaces:

• nogil with noexcept nogil
• nogil except -1 with except -1 nogil
• nogil except * with noexcept nogil

These changes are backward compatible with Cython 0.29.33 but we aim to use only Cython 3.x soon

[codecov]

Codecov Report

Attention: 3 lines in your changes are missing coverage. Please review.

Comparison is base (8caa6c5) 82.08% compared to head (d7a0f0a) 82.06%.
Report is 4 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #3026      +/-   ##
==========================================
- Coverage   82.08%   82.06%   -0.02%     
==========================================
  Files         146      146              
  Lines       20467    20467              
  Branches     3261     3261              
==========================================
- Hits        16800    16796       -4     
- Misses       2856     2859       +3     
- Partials      811      812       +1     

Files	Coverage Δ
dipy/core/sphere.py	93.30% <82.35%> (ø)

... and 1 file with indirect coverage changes

[jhlegarreta]

💯 thanks for doing this Serge !