Release 3.1.0, see MariaDB4j#918

[maven-release-plugin] copy for tag mariaDB4j-3.0.1

[maven-release-plugin] copy for tag mariaDB4j-3.0.0

[maven-release-plugin] copy for tag mariaDB4j-2.6.0

[maven-release-plugin] copy for tag mariaDB4j-2.5.3

[maven-release-plugin] copy for tag mariaDB4j-2.5.2

[maven-release-plugin] copy for tag mariaDB4j-2.5.1

[maven-release-plugin] copy for tag mariaDB4j-2.5.0

[maven-release-plugin] copy for tag mariaDB4j-2.4.0

[maven-release-plugin] copy for tag mariaDB4j-2.3.0