Update the helm charts

[surajssd]

Right now helm charts are being versioned like this

habitat-operator/helm/habitat-operator/templates/clusterrole.yaml

Lines 3 to 8 in 89c6441

	apiVersion: rbac.authorization.k8s.io/v1beta1
	{{- else if .Capabilities.APIVersions.Has "rbac.authorization.k8s.io/v1alpha1" }}
	apiVersion: rbac.authorization.k8s.io/v1alpha1
	{{- else if .Capabilities.APIVersions.Has "rbac.authorization.k8s.io/v1" }}
	apiVersion: rbac.authorization.k8s.io/v1
	{{- end }}

and

habitat-operator/helm/habitat-operator/templates/clusterrolebinding.yaml

Lines 3 to 8 in 89c6441

	apiVersion: rbac.authorization.k8s.io/v1beta1
	{{- else if .Capabilities.APIVersions.Has "rbac.authorization.k8s.io/v1alpha1" }}
	apiVersion: rbac.authorization.k8s.io/v1alpha1
	{{- else if .Capabilities.APIVersions.Has "rbac.authorization.k8s.io/v1" }}
	apiVersion: rbac.authorization.k8s.io/v1
	{{- end }}

now we don't need such if blocks because in 1.9, rbac.authorization.k8s.io/v1 is default.

[surajssd]

more discussion context here #346 (comment)