[gloo-fed] Add podSecuritySpec to fed deployment templates

[sheidkamp]

Version

1.14.x (latest stable)

Is your feature request related to a problem? Please describe.

Allow podSecurityContexts to be defined in gloo-fed deployment charts.

Describe the solution you'd like

This was intended to be included part of #7912.

In order to allow the security contexts to be defined for the pods, we can reuse the existing definitions/includes.

And example of where it is being used for gloo-ee: https://github.com/solo-io/solo-projects/blob/b88241fa0ff6287ed71e2e414a9805ad974e96c7/install/helm/gloo-ee/templates/1-redis-deployment.yaml#L107

Describe alternatives you've considered

No response

Additional Context

No response

[github-actions]

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