CompatHelper: bump compat for NLsolve to 5, (keep existing compat)

[github-actions]

This pull request changes the compat entry for the NLsolve package from 4.5.1 to 4.5.1, 5.
This keeps the compat entries for earlier versions.

Note: I have not tested your package with this new compat entry.
It is your responsibility to make sure that your package tests pass before you merge this pull request.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 88.83%. Comparing base (ced270c) to head (4e4a927).

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #1332   +/-   ##
=======================================
  Coverage   88.83%   88.83%           
=======================================
  Files         228      228           
  Lines       30177    30177           
=======================================
+ Hits        26807    26808    +1     
+ Misses       3370     3369    -1     

Flag	Coverage Δ
drivers	39.48% <ø> (ø)
extensions	5.00% <ø> (ø)
unit-adaptivity	40.10% <ø> (ø)
unit-basics	14.40% <ø> (ø)
unit-celldata	20.84% <ø> (ø)
unit-fespaces-1	32.62% <ø> (ø)
unit-fespaces-2	39.47% <ø> (+<0.01%)	⬆️
unit-fields	17.25% <ø> (ø)
unit-geometry	28.37% <ø> (ø)
unit-multifield	30.75% <ø> (ø)
unit-odes	28.33% <ø> (ø)
unit-referencefes	33.91% <ø> (ø)
unit-visualization	11.67% <ø> (ø)

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