ConsoleWriter uses the level field key to be invalid or panic?

[sishui]

	l := zerolog.New(zerolog.ConsoleWriter{Out: os.Stdout}).
		With().
		Timestamp().
		Caller().
		Logger()
	l.Info().Str("level", "level-str").Msg("test string") // invalid, 
	//l.Debug().Int32("level", 9).Msg("test int32")  // panic
	//l.Debug().Int("level", 9).Msg("test int")  // panic
	l.Debug().Int64("level", 9).Msg("test int64") //panic

[ndk]

#665