Replace request lib with something different in hubble-ui

[geakstr]

Pull request with patch cilium/hubble-ui#8
Issue with request dep request/request#3274

[rolinh]

@geakstr It looks like this library is not maintained anymore. From the readme:

As of Feb 11th 2020, request is fully deprecated. No new changes are expected to land. In fact, none have landed for some time.

See also this issue. It looks like it's time to consider an alternative.

[geakstr]

@rolinh thanks, I've updated the title

[bengentil]

@geakstr Replacing request in hubble-ui in not sufficient, request is used almost everywhere in the kubernetes-client, so this depends also on kubernetes-client/javascript#414