[ZOOINSPECTOR] fix(sec): upgrade com.google.guava:guava to 30.0-jre

Reviewers: maoling
Author: chncaption
Closes #1932 from chncaption/oscs_fix_ccul1g8au51ofid2l2pg

zookeeper-contrib/zookeeper-contrib-zooinspector/pom.xml

@@ -35,7 +35,7 @@
 
   <properties>
     <rat.version>0.6</rat.version>
-    <guava.version>18.0</guava.version>
+    <guava.version>30.0-jre</guava.version>
   </properties>
 
   <build>