Upgrade to eko0.13.5

Created by: niclaurenti

Very fast PR that upgrades evolven3fit_new to the new version of eko (i.e. 0.13.5), in which the check

if np.isclose(theory["Qref"], theory["Qedref"]):
            theory_card.couplings.em_running = True

is performed directly inside eko:

https://github.com/NNPDF/eko/blob/e019ad23495c5bd2ee61426c4705d265137f6596/src/eko/io/runcards.py#L176