Fix: query BigBrainProfileIntensity with locations

[AhmetNSimsek]

Fixes #595

[codecov]

Codecov Report

Attention: Patch coverage is 5.26316% with 18 lines in your changes missing coverage. Please review.

Project coverage is 45.41%. Comparing base (bd9aa19) to head (bc7c1d5).
Report is 8 commits behind head on main.

Files with missing lines	Patch %	Lines
siibra/livequeries/bigbrain.py	7.69%	12 Missing ⚠️
siibra/locations/pointcloud.py	0.00%	5 Missing ⚠️
siibra/locations/boundingbox.py	0.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #637      +/-   ##
==========================================
- Coverage   45.46%   45.41%   -0.06%     
==========================================
  Files          75       75              
  Lines        7204     7212       +8     
==========================================
  Hits         3275     3275              
- Misses       3929     3937       +8     

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