Bump org.apache.zookeeper:zookeeper from 3.5.7 to 3.8.6

Bumps org.apache.zookeeper:zookeeper from 3.5.7 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>

Author: dependabot[bot]

curator-test-zk35/pom.xml

@@ -31,7 +31,7 @@
     <artifactId>curator-test-zk35</artifactId>
 
     <properties>
-        <zookeeper-35-version>3.5.7</zookeeper-35-version>
+        <zookeeper-35-version>3.8.6</zookeeper-35-version>
     </properties>
 
     <dependencies>

curator-test-zk36/pom.xml

@@ -31,7 +31,7 @@
     <artifactId>curator-test-zk36</artifactId>
 
     <properties>
-        <zookeeper-36-version>3.6.3</zookeeper-36-version>
+        <zookeeper-36-version>3.8.6</zookeeper-36-version>
     </properties>
 
     <dependencies>

curator-test-zk37/pom.xml

@@ -31,7 +31,7 @@
     <artifactId>curator-test-zk37</artifactId>
 
     <properties>
-        <zookeeper-37-version>3.7.2</zookeeper-37-version>
+        <zookeeper-37-version>3.8.6</zookeeper-37-version>
     </properties>
 
     <dependencies>

curator-test-zk38/pom.xml

@@ -31,7 +31,7 @@
     <artifactId>curator-test-zk38</artifactId>
 
     <properties>
-        <zookeeper-38-version>3.8.4</zookeeper-38-version>
+        <zookeeper-38-version>3.8.6</zookeeper-38-version>
     </properties>
 
     <dependencies>

pom.xml

@@ -72,7 +72,7 @@
         <redirectTestOutputToFile>true</redirectTestOutputToFile>
 
         <!-- versions -->
-        <zookeeper-version>3.9.4</zookeeper-version>
+        <zookeeper-version>3.8.6</zookeeper-version>
         <maven-bundle-plugin-version>5.1.4</maven-bundle-plugin-version>
         <maven-compiler-plugin-version>3.10.0</maven-compiler-plugin-version>
         <maven-dependency-plugin-version>3.2.0</maven-dependency-plugin-version>