Health check endpoint for API server.

GET /health

URL	Description
https://ceems-demo.myaddr.tools:6443	Test CEEMS API server URL for health, swagger and debug endpoints only.

This health endpoint can be used to check on the health of the API server in containerised and Kubernetes environments.

This endpoint does not need any user header. However, if basic auth is enabled, authentication header must be provided to get status.

/health