Bump versions-maven-plugin from 2.5 to 2.6
Bump versions-maven-plugin from 2.5 to 2.6

Bumps [versions-maven-plugin](https://github.com/mojohaus/versions-maven-plugin) from 2.5 to 2.6.
- [Release notes](https://github.com/mojohaus/versions-maven-plugin/releases)
- [Changelog](https://github.com/mojohaus/versions-maven-plugin/blob/master/ReleaseNotes.md)
- [Commits](https://github.com/mojohaus/versions-maven-plugin/compare/versions-maven-plugin-2.5...versions-maven-plugin-2.6)

Signed-off-by: dependabot[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@dependabot.com>
aspectran/aspectran,aspectran/aspectran