Add -u option to update the cozy-stack in dev script
Add -u option to update the cozy-stack in dev script

nono/cozy-stack,nono/cozy-stack,sebn/cozy-stack,nono/cozy-stack,sebn/cozy-stack,nono/cozy-stack,sebn/cozy-stack,nono/cozy-stack,sebn/cozy-stack