fix: added support for optimize env vars for migration initcontainer

[drodriguez-305]

Which problem does the PR fix?

Related to: #2709

What's in this PR?

modified the optimize deployment to render the optimized env vars in the migration init container.

{{- with .Values.optimize.env }}
{{- tpl (toYaml .) $ | nindent 12 }}
{{- end }}
{{- with .Values.optimize.migration.env }}
{{- tpl (toYaml .) $ | nindent 12 }}
{{- end }}

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