Results 2 issues of Nico Mürdter

If the server wants to handle websockets, the current [`http.Router()`](https://github.com/pace/bricks/blob/fa06ccdc029fb3f0ec91796d8064d84c92d187de/http/router.go#L21) middlewares prohibit this by not forwading the `net/http.Hijacker` interface. As discussed with @threez we propose to implement an own middleware...

T::Feature

The current behaviour of `pb service new` is generating some files with out of date defaults: - `go.sum` is not tidy (-> run `go mod tidy`) - `Dockerfile` still uses...