Bump mysql:mysql-connector-java from 5.1.49 to 8.0.28 in /rxlib-x

Bumps [mysql:mysql-connector-java](https://github.com/mysql/mysql-connector-j) from 5.1.49 to 8.0.28.
- [Changelog](https://github.com/mysql/mysql-connector-j/blob/release/8.x/CHANGES)
- [Commits](mysql/mysql-connector-j@5.1.49...8.0.28)

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

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

rxlib-x/pom.xml

@@ -16,7 +16,7 @@
         <maven.compiler.target>8</maven.compiler.target>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
         <lombok.version>1.18.30</lombok.version>
-        <mysql.version>5.1.49</mysql.version>
+        <mysql.version>8.0.28</mysql.version>
         <HikariCP.version>4.0.3</HikariCP.version>
         <druid.version>1.2.21</druid.version>
         <redisson.version>3.27.2</redisson.version>