[maven-release-plugin] prepare release lantern-0.21.3-8
[maven-release-plugin] prepare release lantern-0.21.3-8

lqch14102/lantern,getlantern/lantern-java,getlantern/lantern-java,lqch14102/lantern,getlantern/lantern-java,getlantern/lantern-java,lqch14102/lantern,lqch14102/lantern,getlantern/lantern-java,getlantern/lantern-java,getlantern/lantern-java,lqch14102/lantern,getlantern/lantern-java,getlantern/lantern-java,lqch14102/lantern,lqch14102/lantern,lqch14102/lantern,lqch14102/lantern