Bump mysql-connector-java from 8.0.12 to 8.0.16 in /dao

Bumps [mysql-connector-java](https://github.com/mysql/mysql-connector-j) from 8.0.12 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/8.0.12...8.0.16)

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

dao/pom.xml

@@ -64,7 +64,7 @@
                     <dependency>
                         <groupId>mysql</groupId>
                         <artifactId>mysql-connector-java</artifactId>
-                        <version>8.0.12</version>
+                        <version>8.0.16</version>
                     </dependency>
                     <dependency>
                         <groupId>com.itfsw</groupId>