fix: fix symbolic_type for unwrapped array symbolics

[AayushSabharwal]

I am very surprised this went unnoticed until now

[codecov-commenter]

⚠️ Please install the to ensure uploads and comments are reliably processed by Codecov.

Codecov Report

Attention: Patch coverage is 50.00000% with 2 lines in your changes missing coverage. Please review.

Project coverage is 78.02%. Comparing base (3e31a75) to head (a5dfae8).
Report is 47 commits behind head on master.

Files with missing lines	Patch %	Lines
src/variable.jl	50.00%	2 Missing ⚠️

❗ Your organization needs to install the Codecov GitHub app to enable full functionality.

Additional details and impacted files

@@             Coverage Diff             @@
##           master    #1346       +/-   ##
===========================================
+ Coverage    6.69%   78.02%   +71.33%     
===========================================
  Files          47       50        +3     
  Lines        4618     4860      +242     
===========================================
+ Hits          309     3792     +3483     
+ Misses       4309     1068     -3241     

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.