We should add test setups that run on Solr and Elasticsearch to Nightly test suite.

For versions: 4.5, 4.6

For DXP editions: solr and ES (for OSS it's Solr only)

Looks like there is a Solr Dockerfile already, but it needs to be tested:

https://github.com/ibexa/docker/blob/main/docker/solr.yml

We don't a have Elastic Dockerfile yet - it should be based on the official Elasticsearch Docker image