Context

As for now p13n INT tests rely on dx-core-test-webapp with 
<personalizationVersion>2.1-beta2</personalizationVersion>. 
Currently this is not doable on Jenkins.

We need a custom dx-core-test-webapp with contains:

• p13n-modules version=2.1-beta2  &
• magnolia-personalization-rest module

TODOs:

Create new feature-branch of dx-core.

Branch name: feature/dxcore-6.2-headless-personalization-SNAPSHOT

Additional modules

• magnolia-personalization-rest
• maybe more ... check with Jarda

p13n version

2.1-SNAPSHOT is fine

rest version

2.2.8 could be fine ... but to be checked with Jarda