Bump com.mysql:mysql-connector-j from 8.0.33 to 8.4.0

Bumps [com.mysql:mysql-connector-j](https://github.com/mysql/mysql-connector-j) from 8.0.33 to 8.4.0.
- [Changelog](https://github.com/mysql/mysql-connector-j/blob/release/8.x/CHANGES)
- [Commits](mysql/mysql-connector-j@8.0.33...8.4.0)

---
updated-dependencies:
- dependency-name: com.mysql:mysql-connector-j
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

build.gradle

@@ -755,7 +755,7 @@ subprojects {
             dependency "org.springframework.boot:spring-boot-starter-jetty:2.7.18"
 
             dependency "com.baomidou:mybatis-plus:3.5.6"
-            dependency "com.mysql:mysql-connector-j:8.0.33"
+            dependency "com.mysql:mysql-connector-j:8.4.0"
         }
     }
 }