test(app): Add skip-update option
test(app): Add skip-update option

Fix tests when they are failing because of skip-update missing

ghaiklor/generator-sails-rest-api,tnunes/generator-trails,italoag/generator-sails-rest-api,jaumard/generator-trails,konstantinzolotarev/generator-trails,ghaiklor/generator-sails-rest-api,italoag/generator-sails-rest-api