* add test checking proper use of rdfs:subClassOf and rdfs:isDefinedBy predicates
* representing the assertor as a testing activity using [Prov-O](https://www.w3.org/TR/prov-o/) ontology
* modifying the markdown report assertor chapter to display all the new assertor available knowledge
* simplifying GitHub Composite Actions signature and implementing a cache system to store python environments (works at branch scale)