[buildout][release] Update path for uwsgi socket

/tmp is not a valid folder for a production environment.
Move the socket to a dedicated folder.

release.cfg

@@ -30,7 +30,7 @@ eggs = ${buildout:eggs}
 use-system-binary = true
 config-master = true
 config-processes = 5
-config-socket = /tmp/uwsgi.sock
+config-socket = /var/run/beat/uwsgi.sock
 config-chmod-socket = 666
 config-env = DJANGO_SETTINGS_MODULE=beat.web.settings.production
           PYTHON_EGG_CACHE=/tmp