Issue #, if available:

Kubernetes Ingress apiVersion: extensions/v1beta1 is deprecated and will be removed in 1.22
Kubernetes Ingress apiVersion: rbac.authorization.k8s.io/v1beta1 is deprecated and will be removed in 1.22

Description of changes:

Use the new APIVersion. (Fix: #779)

Test Results:

• Deploy using the following chart values on Kubernetes 1.20 :

kibana:
  ingress:
    enabled: true
    hosts:
      - "kibana.test.fr"
    pathType: Prefix

elasticsearch:
  client:
    ingress:
      enabled: true
      hosts:
        - "client.test.fr"
      pathType: Prefix

• Check the Ingress and Roles (With https://github.com/FairwindsOps/pluto)

Note: If this PR is related to Helm, please also update the README for related documentation changes. Thanks.
https://github.com/opendistro-for-elasticsearch/opendistro-build/blob/master/helm/README.md

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