TST: add test case for InvalidValue handling message/pipeline
TST: add test case for InvalidValue handling message/pipeline

tests for certtools/intelmq#1765 / PR certtools/intelmq#1766

checks if invalid values in the pipeline are correctly handled (dumped,
logged)

certtools/intelmq,aaronkaplan/intelmq,aaronkaplan/intelmq,aaronkaplan/intelmq,certtools/intelmq,certtools/intelmq