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

[maven-release-plugin] copy for tag plexus-interpolation-1.28

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

[maven-release-plugin] copy for tag plexus-interpolation-1.27

[maven-release-plugin] copy for tag plexus-interpolation-1.26

[maven-release-plugin] copy for tag plexus-interpolation-1.25

[maven-release-plugin] copy for tag plexus-interpolation-1.24

[maven-release-plugin] copy for tag plexus-interpolation-1.23

[maven-release-plugin] prepare release plexus-interpolation-1.22

[maven-release-plugin] prepare release plexus-interpolation-1.21