io.github.wechaty.wechaty依赖包拉不下来，哪里可以拿到

<dependency>
            <groupId>io.github.wechaty</groupId>
            <artifactId>wechaty</artifactId>
            <version>0.1.5-SNAPSHOT</version>
        </dependency>

maven依赖报错：Could not find artifact io.github.wechaty:wechaty:jar:0.1.5-SNAPSHOT in nexus (http://139.224.187.81/repository/maven-public/)

