Unit test fails for HS14

[tmigot]

In https://github.com/JuliaSmoothOptimizers/NLPModelsTest.jl/pull/50/files we modified the test problem HS14 by putting the constraint function linear, while it is affine in CUTEst.

So, in the unit tests, I would suggest doing:

function compare_cons(nlp1, cx1, nlp2, cx2, rtol)
  @test isapprox(cx1 - nlp1.meta.ucon, cx2 - nlp2.meta.ucon, rtol = rtol)
  @test isapprox(cx1 - nlp1.meta.lcon, cx2 - nlp2.meta.lcon, rtol = rtol)
end

compare_cons(nlp, cx, comp_nlp, c(x0), rtol)

instead of

@test isapprox(cx, c(x0), rtol = rtol)

Trying this, I realized there was also an error for HS11 in NLPModelsTest.jl JuliaSmoothOptimizers/NLPModelsTest.jl#53