[improvement] MISP vulnerability object

[adulau]

There is a new csp-vulnerability MISP object:

https://github.com/melicertes/csp/blob/ca16e155ba2b0172e5a5e3e5afb6e4f681641df3/deployment/docker/base-images/misp-image/csp-misp-objects/csp-vulnerability/definition.json

The definition seems very close to the default MISP vulnerability object:

https://github.com/MISP/misp-objects/blob/master/objects/vulnerability/definition.json

A simple improvement would be to use the default one. Maybe there is a specific reason to not use the default? if yes, we could incorporate the changes in the default vulnerability object template.