Update Celery command with additional options

Author: greenpant

src/build/api/support-files/templates/#etc#supervisor-usermgr-api.conf

@@ -36,7 +36,7 @@ environment=
     PATH="__BK_HOME__/.envs/usermgr-api/bin/",
     DJANGO_SETTINGS_MODULE="bkuser_core.config.overlays.prod",
     LOGS_PATH="__BK_HOME__/logs",
-command=__BK_HOME__/.envs/usermgr-api/bin/celery -A bkuser_core worker -l info --concurrency=8 --max-tasks-per-child=1
+command=__BK_HOME__/.envs/usermgr-api/bin/celery -A bkuser_core worker -l info --concurrency=8 --max-tasks-per-child=1 --max-tasks-per-child=1 --without-gossip --without-mingle --without-heartbeat
 autostart=true
 autorestart=true
 redirect_stderr=true