Make packing work on GPUs

[efaulhaber]

No description provided.

[codecov]

Codecov Report

❌ Patch coverage is 33.33333% with 6 lines in your changes missing coverage. Please review.
✅ Project coverage is 77.50%. Comparing base (506fbfe) to head (8104956).
⚠️ Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
src/preprocessing/particle_packing/system.jl	28.57%	5 Missing ⚠️
src/general/initial_condition.jl	0.00%	1 Missing ⚠️

❗ There is a different number of reports uploaded between BASE (506fbfe) and HEAD (8104956). Click for more details.

HEAD has 1 upload less than BASE

Flag	BASE (506fbfe)	HEAD (8104956)
total	1	0

Additional details and impacted files

@@             Coverage Diff             @@
##             main    #1296       +/-   ##
===========================================
- Coverage   90.36%   77.50%   -12.86%     
===========================================
  Files         138      138               
  Lines       11321    11297       -24     
===========================================
- Hits        10230     8756     -1474     
- Misses       1091     2541     +1450     

Flag	Coverage Δ
total	?
unit	77.50% <33.33%> (+0.06%)	⬆️

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