Update default response message for UnsupportedMediaTypeFailures
Update default response message for UnsupportedMediaTypeFailures

Avoid returning the value of the Content-Type header to the client as part of the error response. Sending it back is a potential security vulnerability.

reactormonk/http4s,reactormonk/http4s,m4dc4p/http4s,http4s/http4s,hvesalai/http4s,aeons/http4s,m4dc4p/http4s,ChristopherDavenport/http4s,ChristopherDavenport/http4s,ZizhengTai/http4s,rossabaker/http4s,ChristopherDavenport/http4s,rossabaker/http4s,reactormonk/http4s,aeons/http4s,m4dc4p/http4s,aeons/http4s,ZizhengTai/http4s,ZizhengTai/http4s,hvesalai/http4s,hvesalai/http4s