[Kubernetes] Set Host(`{ENV_DEFINED}`) when creating IngressRoute

In some clusters, Traefik is already installed globally, which is why we don’t use the packaged Traefik in Helm. When using external Traefik, setting `Host()` is necessary when creating Traefik resources, such as IngressRoute.

Expect: Create new configurations `GATEWAY_HOST` and `GATEWAY_HOST_HTTPS`, when `GATEWAY_HOST ` will be added to IngressRoute automatically, and `GATEWAY_HOST_HTTPS` will impact the api-url when gateway components connect to Traefik.