Fix Dockerfile last change

[ili101]

First time trying to use api-platform.
I downloaded it and got the known 3.0.10 caddy build fail. But then trying main I got another error building the "pwa".

failed to solve: executor failed running [/bin/sh -c addgroup --system --gid 1001 nodejs        adduser --system --uid 1001 nextjs]: exit code: 1

Looks like last Lint conected the 2 lines without adding &&

[dunglas]

Good catch, thanks for the fix!