Use standard labels in AKO Helm Chart

[sestegra]

Use recommanded labels as described in Helm official documentation
https://helm.sh/docs/chart_best_practices/labels/#standard-labels

This implementation fixes an issue on ClusterRoleBinding as the following
The following labels definition must be guarded by | replace "+" "_"

The following definition

  labels:
    chart: {{ .Chart.Name }}-{{ .Chart.Version }}

must be replaced by

  labels:
    helm.sh/chart: {{ .Chart.Name }}-{{ .Chart.Version | replace "+" "_" }}.

Then, as this notation already exists in the _helpers.tpl.file, it can be changed to

  labels:
    {{- include "ako.labels" . | nindent 4 }}

[avijenkins]

Can one of the admins verify this patch?

[avijenkins]

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