build(deps): bump org.apache.zookeeper:zookeeper from 3.8.4 to 3.8.6

Bumps org.apache.zookeeper:zookeeper from 3.8.4 to 3.8.6.

---
updated-dependencies:
- dependency-name: org.apache.zookeeper:zookeeper
  dependency-version: 3.8.6
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>
(cherry picked from commit 6537358)
Signed-off-by: Tigran Mkrtchyan <tigran.mkrtchyan@desy.de>

Author: dependabot[bot]

pom.xml

@@ -180,7 +180,7 @@
             <dependency>
                 <groupId>org.apache.zookeeper</groupId>
                 <artifactId>zookeeper</artifactId>
-                <version>3.8.4</version>
+                <version>3.8.6</version>
                 <exclusions>
                     <exclusion>
                         <groupId>com.sun.jmx</groupId>