Akeneo - fix random build failures

[kierenevans]

• Wait for elasticsearch before install
• Bring up console first, so it can do it's entrypoint.dynamic.sh chown of /app to match the build user.
• Then bring up php-fpm and everything else, so www-data will be the same UID as the build user and be able to write to var/logs/dev.log.

Previously, UID 1000 owned the /app/var/ folder but www-data was UID 33 still, due to a parallel startup.

[tkotosz]

looks good, you might need to add the wait to the migrate steps as well but I don't know how akeneo works so 👍

[kierenevans]

doctrine migrations aren't talking to elasticsearch so should be okay 🤞