poms: Replace hardcoded version by §{project.parent.version}?

[kt86]

          @Janekdererste :

Shouldn't we use this expression §{project.parent.version} in all poms instead of the hard-code version 2025-.... in all dependencies in the different poms?
Then, the version it is only there once per pom.

I know, that in practice this does not make a huge difference, as soon, as the update is done by search/replace all... but is looks a bit cleaner for me.

Originally posted by @kt86 in #3574 (comment)