Bump reva

vendor/github.com/opencloud-eu/reva/v2/internal/http/interceptors/log/log.go

@@ -130,6 +130,7 @@ type commonLoggingResponseWriter interface {
 	http.Flusher
 	Status() int
 	Size() int
+	Unwrap() http.ResponseWriter
 }
 
 // responseLogger is wrapper of http.ResponseWriter that keeps track of its HTTP
@@ -170,6 +171,10 @@ func (l *responseLogger) Flush() {
 	}
 }
 
+func (l *responseLogger) Unwrap() http.ResponseWriter {
+	return l.w
+}
+
 type hijackLogger struct {
 	responseLogger
 }