Bump mysql-connector-java in /APIJSON-Java-Server/APIJSONBootTest

Bumps [mysql-connector-java](https://github.com/mysql/mysql-connector-j) from 8.0.11 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@8.0.11...8.0.16)

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

APIJSON-Java-Server/APIJSONBootTest/pom.xml

@@ -51,7 +51,7 @@
 		<dependency>
 			<groupId>mysql</groupId>
 			<artifactId>mysql-connector-java</artifactId>
-			<version>8.0.11</version>
+			<version>8.0.16</version>
 		</dependency>
 		<!-- 没找到合适且稳定的 Oracle 的 JDBC Maven 依赖，已在 libs 目录放了对应的 jar 包来替代 -->