HDDS-10554. Bump Zookeeper to 3.8.4 (apache#6407)

(cherry picked from commit 8dabb2b)

pom.xml

@@ -226,7 +226,7 @@ xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xs
     <jmockit.version>1.24</jmockit.version>
     <junit4.version>4.13.1</junit4.version>
     <junit5.version>5.10.1</junit5.version>
-    <zookeeper.version>3.7.2</zookeeper.version>
+    <zookeeper.version>3.8.4</zookeeper.version>
 
     <!-- Maven protoc compiler -->
     <protobuf-maven-plugin.version>0.5.1</protobuf-maven-plugin.version>
@@ -1222,6 +1222,16 @@ xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xs
         <groupId>org.apache.zookeeper</groupId>
         <artifactId>zookeeper</artifactId>
         <version>${zookeeper.version}</version>
+        <exclusions>
+          <exclusion>
+            <groupId>ch.qos.logback</groupId>
+            <artifactId>logback-core</artifactId>
+          </exclusion>
+          <exclusion>
+            <groupId>ch.qos.logback</groupId>
+            <artifactId>logback-classic</artifactId>
+          </exclusion>
+        </exclusions>
       </dependency>
       <dependency>
         <groupId>org.slf4j</groupId>