HDDS-14978. Bump Zookeeper to 3.8.6 (#10046)

Author: adoroszlai

pom.xml

@@ -221,7 +221,7 @@
     <vault.driver.version>5.1.0</vault.driver.version>
     <weld-servlet.version>3.1.9.Final</weld-servlet.version>
     <woodstox.version>5.4.0</woodstox.version>
-    <zookeeper.version>3.8.4</zookeeper.version>
+    <zookeeper.version>3.8.6</zookeeper.version>
     <zstd-jni.version>1.5.7-7</zstd-jni.version>
   </properties>