Ensure docker file matches the actually used image

I am currently building Ubergraph using version [1.5](https://hub.docker.com/layers/monarchinitiative/ubergraph/1.5/images/sha256-fb5a4e880ca1013112b384c42e92f4fea83da0099b71774c03bde478ec9c33a2?context=explore). I tried to update a couple of times and ran into some issues involving Souffle and Jena that I didn't have time to resolve. But the docker file in `master` has some changes beyond 1.5.

Compare the Dockerfile in master with the linked Docker Hub Ubergraph 1.5 image, paying attention to the Souffle and Jena changes mentioned in the issue. Confirm which image is actually used and update the Dockerfile so it matches that version; done when the Dockerfile and the 1.5 image are consistent.

Written by the indexing model from the issue text.