test/extended/cli/explain: Include OperatorHub CRD when 'marketplace' is enabled
test/extended/cli/explain: Include OperatorHub CRD when 'marketplace' is enabled

Like 6d1143a0f2 (cli: remove metal3 CRDs when capabilities are none,
2022-04-08, #26998), but catching up to openshift/api@d905557541 (fix:
rename operatorhub crd manifest file, 2022-04-12, openshift/api#1178)
and operator-framework/operator-marketplace@eca17739ed
(chore(modules): bump openshift/api for new operatorhub crd,
2022-05-02, operator-framework/operator-marketplace#472) dancing the
OperatorHub CRD over to the marketplace operator, and making it part
of the 'marketplace' cluster-version capability.

soltysh/origin,jsafrane/origin,jsafrane/origin,deads2k/origin,openshift/origin,akram/origin,csrwng/origin,deads2k/origin,mahak/origin,akram/origin,soltysh/origin,bparees/origin,deads2k/origin,akram/origin,bparees/origin,mfojtik/origin,openshift/origin,hroyrh/origin,openshift/origin,bparees/origin,csrwng/origin,soltysh/origin,csrwng/origin,mahak/origin,jsafrane/origin,mahak/origin,hroyrh/origin,hroyrh/origin,mfojtik/origin,mfojtik/origin