[Helm] Add sticky sessions for websocket support in controller deployment descriptor

[esune]

The vc-authn controller uses websockets to notify the frontend of changes in the proof-request. Without sticky sessions, traffic is routed to any of the active pods causing the websocket to be dropped.

[WadeBarnes]

Have a look at https://github.com/bcgov/openshift-aries-mediator-service/pull/18

[stale[bot]]

Is this still relevant? If so, what is blocking it? Is there anything you can do to help move it forward?

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