Add /health endpoint support when using ingress

[RankXen]

Description / issue

• Add support for the /health endpoint introduced in version 4.8.0+ (https://docs.dependencytrack.org/getting-started/monitoring/)
• Because of the current ingress configuration the /health endpoint will direct traffic to the frontend which will return a 404 Not found whereas the api-server should handle the route

How to test

• Apply helm chart with ingress enabled

Note: I already tested on an dependency track deployment running on openshift (chart version 0.15.0) by simply adding:

(note that dtrack-dev is the deployment name I used)

- path: /health
  pathType: Prefix
  backend:
    service:
      name: dtrack-dev-dependency-track-api-server
      port:
        name: web

On GET \health I know properly get:
{"status":"UP","checks":[{"name":"database","status":"UP","data":{"nontx_connection_pool":"UP","tx_connection_pool":"UP"}}]}

[nscuro]

Thanks!

[RankXen]

Thank you for approval & merge.
Upgraded to v0.19.0, works like a charm!