Bump mysql-connector-java from 8.0.15 to 8.0.16

Bumps [mysql-connector-java](https://github.com/mysql/mysql-connector-j) from 8.0.15 to 8.0.16.
- [Release notes](https://github.com/mysql/mysql-connector-j/releases)
- [Changelog](https://github.com/mysql/mysql-connector-j/blob/release/8.0/CHANGES)
- [Commits](https://github.com/mysql/mysql-connector-j/compare/8.0.15...8.0.16

)
Signed-off-by: dependabot[bot] <support@github.com>

pom.xml

@@ -46,7 +46,7 @@
         <swagger2.version>2.7.0</swagger2.version>
         <mybatis-generator.version>1.3.7</mybatis-generator.version>
         <mybatis.version>3.4.6</mybatis.version>
-        <mysql-connector.version>8.0.15</mysql-connector.version>
+        <mysql-connector.version>8.0.16</mysql-connector.version>
         <spring-data-commons.version>2.1.5.RELEASE</spring-data-commons.version>
         <jjwt.version>0.9.0</jjwt.version>
         <aliyun-oss.version>2.5.0</aliyun-oss.version>