Implement reconnects integrated with health checks

[salaboy]

@mcruzdev, here is a quick checklist to document progress on the reconnect implementation:

• [ ] Frontend:
  • [x] reconnect functionality to connect with Kafka,
  • [x] readiness endpoint should return non-200 if the service cannot connect to Kafka
  • [ ] readiness probe should be configured to wait at least 20 seconds before trying to check if it is connected and then retry every 10 seconds
  • [ ] C4P:
  • [ ] all the steps for Kafka described for the Frontend
  • [ ] reconnect to PostgreSQL
  • [ ] integrated with the readiness endpoint if cannot connect to PostgreSQL, the service shouldn't be marked as ready
  • [ ] Agenda:
  • [ ] all the steps for Kafka described for the Frontend
  • [ ] reconnect to Redis
  • [ ] integrated with the readiness endpoint if cannot connect to Redis, the service shouldn't be marked as ready
  • [ ] Nofications:
  • [ ] all the steps for Kafka described for the Frontend