fix(ratel): correct Ingress rule host placement and example values

[nicolaelapteanu]

Summary

Fixes the standalone Ratel chart Ingress template so ingress.hosts[].host is rendered in the correct place in the Kubernetes Ingress rules structure. Also repairs the ALB example values file so it is valid when passed with helm install -f.

---

Problem

host was emitted under the http block (alongside paths), which does not match the Ingress API. Controllers would not apply the hostname as intended, so custom hosts (e.g. behind HAProxy Ingress class) appeared broken even when set in values.

---

Solution

• Emit each rule as either:
  • host: ... + http: ..., or
  • http: ... only when no host is set
• Keep paths unchanged under http
• Add the missing top-level ingress: key in:
  • example_values/ingress/ingress-alb-no_host.yaml