Merge pull request #4 from tomsun28/dependabot/maven/sample-tom/mysql-mysql-connector-java-8.0.16

Bump mysql-connector-java from 5.1.6 to 8.0.16 in /sample-tom

sample-tom/pom.xml

@@ -16,7 +16,7 @@
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
         <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
         <java.version>1.8</java.version>
-        <mysql.version>5.1.6</mysql.version>
+        <mysql.version>8.0.16</mysql.version>
     </properties>
 
     <dependencies>