FrankenPHP build slowdown

[Walter-o]

hello!

At line 80 in docker/entrypoint-frankenphp.sh which reads: chown -R www-data:www-data /app/public/var

It slows my server down for like 20-40 seconds before resuming. And this is on every restart of the docker container.

I just verified it doesn't happen on non-frankenphp builds.

The reason why this isn't a merge request is because i don't know if this line of code is like a cardhouse. Someone with good knowledge of the codebase has to make a judgement.