[maven-release-plugin] copy for tag v2.12.0

[maven-release-plugin] copy for tag v2.11.0

[maven-release-plugin] copy for tag v2.10.0

[maven-release-plugin] copy for tag v2.9.0

[maven-release-plugin] copy for tag v2.8.1

[maven-release-plugin] copy for tag v2.8.0

[maven-release-plugin] copy for tag v2.8.0-rc1

[maven-release-plugin] copy for tag v2.8.0-rc.1

[maven-release-plugin] copy for tag v2.7.0

[maven-release-plugin] copy for tag v2.6.0