bump y18n js package to fix security alert
Created by: adipasquale
should fix https://github.com/betagouv/rdv-solidarites.fr/security/dependabot/yarn.lock/y18n/open
Created by: adipasquale
should fix https://github.com/betagouv/rdv-solidarites.fr/security/dependabot/yarn.lock/y18n/open