fix: balancer RBAC permission to update balancer status

[a7i]

What type of PR is this?

/kind bug

What this PR does / why we need it:

Which issue(s) this PR fixes:

Fixes #

Prior to change:

I0718 02:32:46.477651       1 controller.go:144] Processing balancer kube-public/balancer-poc
W0718 02:32:46.489904       1 controller.go:194] Failed to update status of balancer kube-public/balancer-poc: balancers.balancer.x-k8s.io "balancer-poc" is forbidden: User "system:serviceaccount:kube-system:balancer-controller" cannot update resource "balancers/status" in API group "balancer.x-k8s.io" in the namespace "kube-public"
I0718 02:32:46.489999       1 event.go:294] "Event occurred" object="kube-public/balancer-poc" fieldPath="" kind="Balancer" apiVersion="balancer.x-k8s.io/v1alpha1" type="Warning" reason="StatusNotUpdated" message="balancers.balancer.x-k8s.io \"balancer-poc\" is forbidden: User \"system:serviceaccount:kube-system:balancer-controller\" cannot update resource \"balancers/status\" in API group \"balancer.x-k8s.io\" in the namespace \"kube-public\""

After change:

I0718 02:32:50.215554       1 controller.go:144] Processing balancer kube-public/balancer-poc
I0718 02:32:50.234116       1 controller.go:144] Processing balancer kube-public/balancer-poc
I0718 02:33:01.491710       1 controller.go:144] Processing balancer kube-public/balancer-poc
I0718 02:33:02.558944       1 controller.go:144] Processing balancer kube-public/balancer-poc
I0718 02:33:02.571374       1 scale.go:102] Scaling deployments/kube-public/balancer-poc-us-west-2a to 3

Special notes for your reviewer:

Does this PR introduce a user-facing change?

fix: balancer RBAC permission to update balancer status

Additional documentation e.g., KEPs (Kubernetes Enhancement Proposals), usage docs, etc.:

[mwielgus]

/lgtm
/approve

[k8s-ci-robot]

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This pull-request has been approved by: a7i, mwielgus

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