chore(deps): bump org.apache.zookeeper:zookeeper from 3.9.0 to 3.9.1

Bumps org.apache.zookeeper:zookeeper from 3.9.0 to 3.9.1.

---
updated-dependencies:
- dependency-name: org.apache.zookeeper:zookeeper
  dependency-type: direct:production
  update-type: version-update:semver-patch
...
Signed-off-by: dependabot[bot] <support@github.com>

pom.xml

@@ -89,7 +89,7 @@
         <skywalking-tooklit.version>9.0.0</skywalking-tooklit.version>
         <vavr.version>0.10.4</vavr.version>
         <xxl-job.version>2.0.2</xxl-job.version>
-        <zookeeper.version>3.9.0</zookeeper.version>
+        <zookeeper.version>3.9.1</zookeeper.version>
         <zxing-core.version>3.5.2</zxing-core.version>
 
         <!-- aliyun -->