Camel rest returns 404 status code instead of 405

When I define an endpoint with Camel:
```
rest().get("/hello").to("direct:hello");
from("direct:hello").setBody(constant("Hello World"));
```
request with GET method to `/hello` returns 200 status code
and request with POST method to `/hello` returns 405 status code.
This is expected behaviour.

Once I add an endpoint with Quarkus:
```
@Path("/bye")
public class QuarkusEndpoint {
@GET
public String bye() {
return "Bye World";
}
}
```
request with POST method to `/hello` doesn't return 405 status code anymore but 404.

Reproduce the behavior using the Camel REST `/hello` route and the Quarkus `@Path("/bye")` endpoint shown in the issue. Start by comparing the POST responses with and without the Quarkus endpoint; done means an unsupported POST request returns HTTP 405 rather than 404.

Written by the indexing model from the issue text.