Bump mysql-connector-java from 5.1.44 to 8.0.16

Bumps [mysql-connector-java](https://github.com/mysql/mysql-connector-j) from 5.1.44 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](mysql/mysql-connector-j@5.1.44...8.0.16)

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

Author: dependabot[bot]

pom.xml

@@ -50,7 +50,7 @@
         <!-- 编译时的编码 -->
         <maven.compiler.encoding>UTF-8</maven.compiler.encoding>
         <hutool.version>5.5.1</hutool.version>
-        <mysql.version>5.1.44</mysql.version>
+        <mysql.version>8.0.16</mysql.version>
         <sentinel.version>1.8.1</sentinel.version>
     </properties>