feat(specs): add facets query parameter available at run time

Author: ClaraMuller

specs/composition/common/schemas/requestBodies/RunParams.yml

@@ -13,6 +13,8 @@ params:
       $ref: '../../params/Composition.yml#/getRankingInfo'
     relevancyStrictness:
       $ref: '../../params/Search.yml#/relevancyStrictness'
+    facets:
+      $ref: '../../params/Search.yml#/facets'
     facetFilters:
       $ref: '../../params/Search.yml#/facetFilters'
     optionalFilters: