v1.484.0

Update `eks/external-dns` component to support Istio `istio-gateway` resources @aknysh (#1098)

what

• Update eks/external-dns component to support Istio istio-gateway resources

why

• The external-dns Helm Chart supports the sources variable (not source) to specify the resources types to be observed for new DNS entries by ExternalDNS

## @param sources [array] K8s resources type to be observed for new DNS entries by ExternalDNS
##
sources:
  # - crd
  - service
  - ingress

The code used the source variable instead of sources. It was working for the service and ingress types because they are in the Chart values by default.

The istio-gateway resource was never added, preventing external-dns from managing Istio Gateways and creating DNS records for the Gateway's hosts.

references

• https://artifacthub.io/packages/helm/bitnami/external-dns?modal=values