FEATURE: vmauth: support HPA for requests load balancer.

BUGFIX: vmagent: skip replica count update when VMAgent is in stateful mode and HPA is enabled. See #2190.

BUGFIX: vmalertmanagerconfig: Remove prefix from empty subroute receiver. See #2185.

BUGFIX: vmoperator: updated OLM configuration to fix OpenShift catalog publishing. See #2195.