If it should use ${revision} to make versions managed between modules

## Issue Description
Currently version segment is defined in every `pom.xml`.

### Describe what happened (or what feature you want)
Every version segment should be synchronized if there is any change.

### Describe what you expected to happen
Introduce the ${revision} placeholder

Inspect the version declarations in the repository's pom.xml files and read how the modules currently inherit or repeat them. Verify the Maven build after introducing the ${revision} placeholder, and consider the work done when version changes no longer need to be synchronized manually between modules.

Written by the indexing model from the issue text.