[EKS] [request]: Allow user to modify the kube-apiserver flag --service-account-max-token-expiration

[austintackaberry]

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Tell us about your request
I would like to make requests to TokenRequest API for tokens that have expiration > 24 hours. When I try to make a request to TokenRequest API for 30 day expiration, I receive a token that has 1 day expiration.

Which service(s) is this request for?
EKS

Tell us about the problem you're trying to solve. What are you trying to do, and why is it hard?
This cluster is a development cluster, and I don't want users to have to fetch a new token every day in order to access this development cluster.

Are you currently working around this issue?
Yes, users have to refresh their token every day. But for kubernetes clusters with other cloud providers this is not a restriction, so other cloud provider kubernetes clusters have a better user experience.