Allow serving app from non-root path in dev env

Usage:

$ EXTRA_SOURCES_ANSIBLE_OPTS='-e ingress_path=/awx' make docker-compose
$ curl http://localhost:8013/awx/api/v2/ping/

tools/ansible/roles/dockerfile/templates/supervisor.conf.j2

@@ -30,8 +30,8 @@ environment =
     DEV_RELOAD_COMMAND='supervisorctl -c /etc/supervisord_task.conf restart all; supervisorctl restart tower-processes:daphne tower-processes:wsbroadcast'
 {% else %}
 command = /var/lib/awx/venv/awx/bin/uwsgi /etc/tower/uwsgi.ini
-directory = /var/lib/awx
 {% endif %}
+directory = /var/lib/awx
 autorestart = true
 startsecs = 30
 stopasgroup=true