automount service account token

[aldo-airtm]

When working with EKS and pod identity tokens, we need to tell kubernetes to automount the SA token

Today:

    spec:
      {{- if .Values.serviceAccount.name }}
      serviceAccountName: {{ .Values.serviceAccount.name }}
      {{- end }}

Proposal:

    spec:
      {{- if .Values.serviceAccount.name }}
      serviceAccountName: {{ .Values.serviceAccount.name }}
      automountServiceAccountToken: true
      {{- end }}

[iamKunalGupta]

I'm not sure if this is needed, automount should be true by default, internally we use eks pod identity as well and it did not require us having to add the automount in spec