reference in submodules should be the one defined in the YAML definition under repositoryModernizer/version
### Actual Behaviour
Define version is used in parent pom and in the back reference for each module EXCEPT for core, where it is statically set to 1.0-SNAPSHOT
### Reproduce Scenario (including but not limited to)
#### Steps to Reproduce
- set repositoryModernizer/version to 5.0-SNAPSHOT
- run modernizer
- check parent version in core/pom.xml
#### Platform and Version
- macos
- node 12
- @adobe/aio-cli-plugin-aem-cloud-service-migration 1.2.3
#### Sample Code that illustrates the problem
#### Logs taken while reproducing problem
Expected Behaviour