Watch TLS certs & reload

Previously, when using TLS, the console plug-in, agent, and flowlogs-pipeline got certificates from a mounted config map or secret. If a certificates were replaced, the mounted value inside the pods was not updated, forcing the pods to continue using the old certificates. As a consequence, the console plug-in, agent, or flowlogs-pipeline could lose connectivity to services such as Loki or Kafka. With this patch, the certificates content are watched, so a change triggers restarting the pods that mounted those certificates, with new volumes configured. As a result, connectivity to Loki or Kafka is automatically restored.