Bump to NLPModels 0.18

[tmigot]

No description provided.

[codecov]

Codecov Report

Merging #274 (a752413) into main (027ef3d) will decrease coverage by 0.07%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##             main     #274      +/-   ##
==========================================
- Coverage   84.69%   84.61%   -0.08%     
==========================================
  Files           5        5              
  Lines         601      598       -3     
==========================================
- Hits          509      506       -3     
  Misses         92       92              

Impacted Files	Coverage Δ
src/CUTEst.jl	83.33% <ø> (-0.30%)	⬇️

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[abelsiqueira]

Thanks