fix: update web server command in Procfile to use pgbouncer with uvicorn

Author: DonnieBLT

Procfile

@@ -1,3 +1,3 @@
 release: python manage.py migrate  --noinput
-#web: bin/start-pgbouncer uvicorn blt.asgi:application --host 0.0.0.0 --port ${PORT}
-web: gunicorn blt.wsgi --log-file - --workers 1 --worker-class gthread --threads 2 --timeout 120
+web: bin/start-pgbouncer uvicorn blt.asgi:application --host 0.0.0.0 --port ${PORT} --workers 1
+#web: gunicorn blt.wsgi --log-file - --workers 1 --worker-class gthread --threads 2 --timeout 120