emissary: Regression: Ambassador does not route insecure requests

Description

This bug has already been fixed in the past and it came back when updating the Helm Chart from 6.5.5 to 6.5.6 (or Ambassador 1.7.1 to 1.7.2).

Even if one follows the documentation for ClearText support, Ambassador categorically refuses to forward non HTTP requests and always forces redirection (HTTP 301).

---
apiVersion: getambassador.io/v2
kind: Module
metadata:
  name: ambassador
  namespace: ambassador
spec:
  config:
    enable_grpc_web: true
    use_proxy_proto: false
    use_remote_address: true
    x_forwarded_proto_redirect: false
...
apiVersion: getambassador.io/v2
kind: Host
metadata:
  name: ambassador
  namespace: ambassador
spec:
  hostname: "*.example.com"
  acmeProvider:
    authority: none
  requestPolicy:
    insecure:
      action: Route
      additionalPort: -1
...