chore(deps): bump mariadb-java-client from 2.7.3 to 2.7.4

Bumps [mariadb-java-client](https://github.com/mariadb-corporation/mariadb-connector-j) from 2.7.3 to 2.7.4.
- [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@2.7.3...2.7.4)

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

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

build.gradle

@@ -77,7 +77,7 @@ dependencies {
 
  testImplementation group: 'javax.xml.bind', name: 'jaxb-api', version: '2.3.1'
  testImplementation group: 'com.h2database', name: 'h2', version: '1.4.200'
- testImplementation group: 'org.mariadb.jdbc', name: 'mariadb-java-client', version: '2.7.3'
+ testImplementation group: 'org.mariadb.jdbc', name: 'mariadb-java-client', version: '2.7.4'
  testImplementation group: 'mysql', name: 'mysql-connector-java', version: '8.0.23'
  testImplementation group: 'org.xerial', name: 'sqlite-jdbc', version: '3.36.0.2'
  testImplementation group: 'org.postgresql', name: 'postgresql', version: '42.2.21'