backward compatibility: Non-application endpoint

Given an application with the following configuration:

quarkus.http.root-path=/api
quarkus.http.non-application-root-path=/q
quarkus.http.redirect-to-non-application-root-path=true

When you make a request to `http://localhost:8080/api/health` you expected to be redirected to `http://localhost:8080/q/health`

Works on master, but on branch 1.11 (1.11.5.ER4) the redirection is done, only if you make a request to `http://localhost:8080/health`. Looks like `quarkus.http.root-path` is not prepended. 

Note: Missing Master backport.