MULE-6791: Jetty inbound endpoint configured with useContinuations="true" sets http.method as outbound rather than inbound
(cherry picked from commit 0b140391ca17788e4596c52c9f2f73fab879287c)
(cherry picked from commit 0988d9b0f76cb454e1f5f13d3cad55c66e51da16)