Bump org.apache.zookeeper:zookeeper from 3.9.2 to 3.9.4

Bumps org.apache.zookeeper:zookeeper from 3.9.2 to 3.9.4.

---
updated-dependencies:
- dependency-name: org.apache.zookeeper:zookeeper
  dependency-version: 3.9.4
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

pom.xml

@@ -280,7 +280,7 @@ along with ShieldBlaze ExpressGateway.  If not, see <https://www.gnu.org/license
         <dependency>
             <groupId>org.apache.zookeeper</groupId>
             <artifactId>zookeeper</artifactId>
-            <version>3.9.2</version>
+            <version>3.9.4</version>
             <exclusions>
                 <exclusion>
                     <groupId>ch.qos.logback</groupId>