Prevent composer prepare-env from running as root
Prevent composer prepare-env from running as root

Warnings where raised while running the prepare-env in the eb role. This
 change prevents these warnings from happening by explicitly instructing
 Ansible not to run the task as root.

OpenConext/OpenConext-deploy,OpenConext/OpenConext-deploy,OpenConext/OpenConext-deploy,OpenConext/OpenConext-deploy,OpenConext/OpenConext-deploy