replace use of assert macro

[oliverlee]

Change-Id: I97edf879e46911507e93c35060fdf8d01afe29c4

[codecov]

Codecov Report

Attention: Patch coverage is 42.85714% with 4 lines in your changes missing coverage. Please review.

Project coverage is 89.41%. Comparing base (1a2227e) to head (bcd41e8).
Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
rigid_geometric_algebra/detail/contract.hpp	0.00%	4 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #83      +/-   ##
==========================================
- Coverage   90.14%   89.41%   -0.73%     
==========================================
  Files          27       27              
  Lines         355      359       +4     
  Branches       11       10       -1     
==========================================
+ Hits          320      321       +1     
- Misses         27       31       +4     
+ Partials        8        7       -1     

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