Replace scryptb by native scrypt of Node 10+
node-scrypt indicates it is now obsolete and that we should prefer use Node crypto API directly which proposes scrypt feature.
Gitlab was upgraded to latest version (v18.3.1), please report issues to https://forum.duniter.org/t/interventions-et-indisponibilite-des-forums-et-de-gitlab/7131/298
node-scrypt indicates it is now obsolete and that we should prefer use Node crypto API directly which proposes scrypt feature.