Bump mysql-connector-java

Bumps [mysql-connector-java](https://github.com/mysql/mysql-connector-j) from 5.1.25 to 8.0.28.
- [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@5.1.25...8.0.28)

---
updated-dependencies:
- dependency-name: mysql:mysql-connector-java
  dependency-type: direct:production
...

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

src/org/webdsl/dsl/project/template-java-servlet/lib/pom.xml

@@ -281,7 +281,7 @@
     <dependency>
       <groupId>mysql</groupId>
       <artifactId>mysql-connector-java</artifactId>
-      <version>5.1.25</version>
+      <version>8.0.28</version>
     </dependency>
 
     <dependency>