envoy.filters.http.dynamic_forward_proxy can it support host_rewrite_regex in addition to host_rewrite_literal

I want to rewrite the route like this and lookup DNS

http://example.com/guid/getstuff

http://guid.example.internal/guid/getstuff

So can something like this be supported - host_rewrite_regex instead of host_rewrite_literal which is currently supported
```
typed_per_filter_config:
envoy.filters.http.dynamic_forward_proxy:
"@type": type.googleapis.com/envoy.extensions.filters.http.dynamic_forward_proxy.v3.PerRouteConfig
host_rewrite_regex:
pattern:
regex: "^/(.+)/(.+$)"
substitution: \1.example.internal
```

The full listener

```
- name: listener_1
address:
socket_address: { address: 0.0.0.0, port_value: 8080 }
filter_chains:
- filters:
- name: envoy.filters.network.http_connection_manager
typed_config:
"@type": type.googleapis.com/envoy.extensions.filters.network.http_connection_manager.v3.HttpConnectionManager
generate_request_id: true
codec_type: auto
stat_prefix: ingress_http
route_config:
name: local_route
virtual_hosts:
- name: local_service
domains: ["*"]
routes:
- match: { prefix: "/" }
route:
host_rewrite_path_regex:
pattern:
regex: "^/(.+)/(.+$)"
substitution: \1.example.internal
append_x_forwarded_host: true
cluster: example_dns
typed_per_filter_config:
envoy.filters.http.dynamic_forward_proxy:
"@type": type.googleapis.com/envoy.extensions.filters.http.dynamic_forward_proxy.v3.PerRouteConfig
host_rewrite_regex:
pattern:
regex: "^/(.+)/(.+$)"
substitution: \1.example.internal
http_filters:
- name: envoy.filters.http.dynamic_forward_proxy
typed_config:
"@type": type.googleapis.com/envoy.extensions.filters.http.dynamic_forward_proxy.v3.FilterConfig
dns_cache_config:
name: dynamic_forward_proxy_cache_config
dns_lookup_family: V4_ONLY
typed_dns_resolver_config:
name: envoy.network.dns_resolver.cares
typed_config:
"@type": type.googleapis.com/envoy.extensions.network.dns_resolver.cares.v3.CaresDnsResolverConfig
resolvers:
- socket_address:
address: "172.16.238.10"
port_value: 53
dns_resolver_options:
use_tcp_for_dns_lookups: true
no_default_search_domain: true
- name: envoy.filters.http.router
typed_config:
"@type": type.googleapis.com/envoy.extensions.filters.http.router.v3.Router
```