Fix path to eCMR data model artefact repository in pom.xml

Related issues

Correct eCMR data model repository path to fetch dependency jar file from any environment.

Acceptance criteria

• Implemented code changes don't diverge from the related issue.
• Only released versions of dependencies are used (i.e. no snapshot versions).
• Pipeline still works.
• GitLab issue is up-to-date.

Proposed squash commit message

Correct eCMR data model repository path to fetch dependency jar file from any environment.

Change path to a fully qualifed in pom.xml

Closes #75 (closed)