Write integration test that confirms the SPARQL query works against a current graph

[surchs]

#282 is a good example of a PR that looks good but to be completely sure a reviewer would have to

• clone the PR branch
• spin up a local graph
• configure the graph (although that is easier now with [ENH] Add GraphDB setup script recipes#19)
• put data into the local graph
• either spin up the local PR branch directly and connect to the Graph by hand OR
• build a new docker image from the local PR branch, edit the docker-compose.yml and then spin up the local branch API with the graph

That's silly work and a bot should do it. As part of a test. We should be most of the way there already, but the rest is probably still a good bit of work.

Also related to https://github.com/neurobagel/project/issues/55