Test: Gomega enable the use of Stringer representation
Test: Gomega enable the use of Stringer representation

On errors in Gomega always printed the values and never use String()
function. With the use of `format.UseStringerRepresentation` it'll print
the errors in a useful way for developers.

Signed-off-by: Eloy Coto <2a8acc28452926ceac4d9db555411743254cf5f9@gmail.com>

tgraf/cilium,michi-covalent/cilium,tgraf/cilium,michi-covalent/cilium,cilium-team/cilium,cilium/cilium,eloycoto/cilium,tgraf/cilium,cilium/cilium,tgraf/cilium,cilium/cilium,tklauser/cilium,michi-covalent/cilium,tklauser/cilium,tklauser/cilium,tgraf/cilium,scanf/cilium,eloycoto/cilium,tgraf/cilium,tklauser/cilium,scanf/cilium,scanf/cilium,eloycoto/cilium,tklauser/cilium,cilium-team/cilium,scanf/cilium,eloycoto/cilium,scanf/cilium,scanf/cilium,eloycoto/cilium,eloycoto/cilium,eloycoto/cilium,cilium/cilium,cilium/cilium,michi-covalent/cilium,scanf/cilium,michi-covalent/cilium