[VPA] sharedIndexInformer started twice

[mikutas]

Which component are you using?:

vertical-pod-autoscaler

What version of the component are you using?:

Component version: 0.14.0

What k8s version are you using (kubectl version)?:

kubectl version Output

$ kubectl version

What environment is this in?:

AWS EKS / k3d local cluster

What did you expect to happen?:

sharedIndexInformer not started more than once

What happened instead?:

Seven sharedIndexInformer are started twice and following log are output seven times.

The sharedIndexInformer has started, run more than once is not allowed

How to reproduce it (as minimally and precisely as possible):

just start vpa-admission-controller

Anything else we need to know?:

It is similar to: kubernetes-sigs/metrics-server#1002

[jbartosik]

@laoj2 please take a look