[maven-release-plugin] copy for tag release-3.9.4-1

[maven-release-plugin] copy for tag release-3.9.4-0

ZooKeeper 3.9.3 release.

[maven-release-plugin] copy for tag release-3.9.3-2

[maven-release-plugin] copy for tag release-3.9.3-1

[maven-release-plugin] copy for tag release-3.9.3-0

ZooKeeper 3.9.2 release.

ZooKeeper 3.8.4 release.

[maven-release-plugin] copy for tag release-3.7.3-0

[maven-release-plugin] copy for tag release-3.9.2-0