Bump com.mysql:mysql-connector-j from 8.2.0 to 8.4.0

Bumps [com.mysql:mysql-connector-j](https://github.com/mysql/mysql-connector-j) from 8.2.0 to 8.4.0.
- [Changelog](https://github.com/mysql/mysql-connector-j/blob/release/8.x/CHANGES)
- [Commits](mysql/mysql-connector-j@8.2.0...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>

pom.xml

@@ -686,7 +686,7 @@
         <dependency>
             <groupId>com.mysql</groupId>
             <artifactId>mysql-connector-j</artifactId>
-            <version>8.2.0</version>
+            <version>8.4.0</version>
             <optional>true</optional>
         </dependency>
         <dependency>