feat(chart): annotations on ClusterRoleBinding

[mloiseleur]

What does this PR do?

Allow chart user to set annotations on ClusterRoleBinding.

Motivation

User can set annotations like this for their linter / security scanner:

rbac:
  annotations:
    ignore-check.kube-linter.io/access-to-create-pods: "required by flagger"
    ignore-check.kube-linter.io/access-to-secrets: "required by flagger"