Bump mariadb-java-client from 2.7.5 to 3.0.3

Bumps [mariadb-java-client](https://github.com/mariadb-corporation/mariadb-connector-j) from 2.7.5 to 3.0.3.
- [Release notes](https://github.com/mariadb-corporation/mariadb-connector-j/releases)
- [Changelog](https://github.com/mariadb-corporation/mariadb-connector-j/blob/master/CHANGELOG.md)
- [Commits](mariadb-corporation/mariadb-connector-j@2.7.5...3.0.3)

---
updated-dependencies:
- dependency-name: org.mariadb.jdbc:mariadb-java-client
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

providers/jdbc/shedlock-test-support-jdbc/pom.xml

@@ -45,7 +45,7 @@
         <dependency>
             <groupId>org.mariadb.jdbc</groupId>
             <artifactId>mariadb-java-client</artifactId>
-            <version>2.7.5</version>
+            <version>3.0.3</version>
         </dependency>
 
         <dependency>