Bump mysql-connector-java from 5.1.31 to 8.0.28

Bumps [mysql-connector-java](https://github.com/mysql/mysql-connector-j) from 5.1.31 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](https://github.com/mysql/mysql-connector-j/compare/5.1.31...8.0.28)

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

Signed-off-by: dependabot[bot] <support@github.com>
diff --git a/pom.xml b/pom.xml
index 56531b2..f42c706 100644
--- a/pom.xml
+++ b/pom.xml
@@ -173,7 +173,7 @@
         <metrics.core.version>3.0.2</metrics.core.version>
         <mockito.version>3.0.0</mockito.version>
         <mockito.all.version>1.10.19</mockito.all.version>
-        <mysql-connector-java.version>5.1.31</mysql-connector-java.version>
+        <mysql-connector-java.version>8.0.28</mysql-connector-java.version>
         <netty-all.version>4.1.85.Final</netty-all.version>
         <noggit.version>0.8</noggit.version>
         <orc.core.version>1.6.7</orc.core.version>