Bump nalgebra

[svenstaro]

I had to bump the MSRV to 1.87 for this. :/

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 49.89%. Comparing base (52f3742) to head (410422b).
⚠️ Report is 3 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #170      +/-   ##
==========================================
+ Coverage   49.69%   49.89%   +0.20%     
==========================================
  Files          17       17              
  Lines        1471     1471              
==========================================
+ Hits          731      734       +3     
+ Misses        740      737       -3     

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