Add hl7-bot to cqframework for CI/CD integration.

[hl7-bot]

To get the results project deployed under HL7, this GitHub account (hl7-bot) needs organizational authorization of "cqframework" to automanage project-level triggers for automated integration with https://ci.hl7.org. It is a service account only used for CI/CD and, for example, providing automated build feedback into GitHub project discussions.

[preston]

Now that #3 is merged in, I'd like to autobuild the project to be publicly available via the hlseven/quality-cql-tests-results:latest label on Docker Hub per the README. It can be done manually of course but would be reeeeeally nice to just automate builds of at least the release branch. :)