static ServiceRequestContext of(HttpRequest request) {
        return builder(request).build();
    }
Returns a new {@link ServiceRequestContext} created from the specified {@link HttpRequest}.
Note that it is not usually required to create a new context by yourself, because Armeria
will always provide a context object for you. However, it may be useful in some cases such as
unit testing.

@see ServiceRequestContextBuilder
core/src/main/java/com/linecorp/armeria/server/ServiceRequestContext.java