fix: ssl connection seens to be required:

https://stackoverflow.com/questions/56193054/remote-access-to-heroku-postgres-hobby-tier-without-ssl

backend/config/env/production/database.js

@@ -12,7 +12,7 @@ module.exports = ({ env }) => ({
         password: env('DATABASE_PASSWORD', ''),
       },
       options: {
-        ssl: false,
+        ssl: true,
       },
     },
   },