[maven-release-plugin] copy for tag 5.6.1

[maven-release-plugin] copy for tag 5.6.0

[maven-release-plugin] copy for tag 5.5.3

[maven-release-plugin] copy for tag 5.5.2

[maven-release-plugin] copy for tag 5.5.1

[maven-release-plugin] copy for tag 5.5.0

[maven-release-plugin] copy for tag 5.4.1

[maven-release-plugin] copy for tag 5.4.0

[maven-release-plugin] prepare for next development iteration

[maven-release-plugin] copy for tag 5.3.5