Fix static arrays

[avik-pal]

Checklist

• Appropriate tests were added
• Any code changes were done in a way that does not break public API
• All documentation related to code changes were updated
• The new code follows the
  contributor guidelines, in particular the SciML Style Guide and
  COLPRAC.
• Any new documentation only uses public API

Additional context

Add any other context about the problem here.

[codecov]

Codecov Report

Attention: 7 lines in your changes are missing coverage. Please review.

Comparison is base (8f9a432) 58.65% compared to head (a739091) 49.51%.

Files	Patch %	Lines
src/internal/linear_solve.jl	46.15%	7 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #376      +/-   ##
==========================================
- Coverage   58.65%   49.51%   -9.14%     
==========================================
  Files          44       44              
  Lines        2612     2601      -11     
==========================================
- Hits         1532     1288     -244     
- Misses       1080     1313     +233     

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