Add JuMP arrays

[blegat]

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[codecov]

Codecov Report

❌ Patch coverage is 96.66667% with 1 line in your changes missing coverage. Please review.
✅ Project coverage is 90.78%. Comparing base (68dbc68) to head (c5fb26f).
⚠️ Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
src/JuMP/variables.jl	94.44%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #30      +/-   ##
==========================================
+ Coverage   90.65%   90.78%   +0.13%     
==========================================
  Files          16       20       +4     
  Lines        2258     2301      +43     
==========================================
+ Hits         2047     2089      +42     
- Misses        211      212       +1     

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