include common labels in pod labels

[jhulick]

What this PR does / why we need it:

• it adds all common labels to metadata labels in the pod spec. The main reasoning is to persist the helm.sh/chart, app.kubernetes.io/version and app.kubernetes.io/name labels to the pod for standardization. Per docs, (https://kubernetes.io/docs/concepts/overview/working-with-objects/common-labels/#labels) "In order to take full advantage of using these labels, they should be applied on every resource object.".
• to improve traceability throughout the application. Ex. via Kiali dashboard.

Which issue(s) this PR fixes (optional, in fixes #(, fixes #<issue_number>, ...) format, will close the issue(s) when PR gets merged):
Fixes #

[CLAassistant]

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