Bump org.apache.zookeeper:zookeeper from 3.9.2 to 3.9.4 in /tools/java/embedded-zookeeper#21

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dependabot/maven/tools/java/embedded-zookeeper/org.apache.zookeeper-zookeeper-3.9.4apache/dubbo-python2:dependabot/maven/tools/java/embedded-zookeeper/org.apache.zookeeper-zookeeper-3.9.4Copy head branch name to clipboard