7bd3dc1 Move RebuildImagesOnRPMAdvisoryChange tests to right file.

Authored and Committed by jkaluza 4 years ago
    Move RebuildImagesOnRPMAdvisoryChange tests to right file.
    
    For some unknown reason, half of a tests for RebuildImagesOnRPMAdvisoryChange
    was included in the `test_update_db_on_advisory_change.py`. These tests
    do not belong there.
    
    In this commit, the tests are moved to proper file.