Attempt to filter out pyproject-rpm-macros from AppStream
    
    pyproject-rpm-macros should be in CRB, but pyproject-srpm-macros
    is pulling it to AppStream for some reason.
    pyproject-srpm-macros does have a conditional dependency
    on pyproject-rpm-macros, but this shouldn't pull the dependency
    into AppStream.
    
    See the JIRA ticket for more details.
    
    Related: ENGCMP-4166
    
    Signed-off-by: Michal Srb <michal@redhat.com>