chg: [vulnerability] is now in its own vulnerability meta-category

objects/vulnerability/definition.json

@@ -92,7 +92,7 @@
   },
   "version": 5,
   "description": "Vulnerability object describing a common vulnerability enumeration which can describe published, unpublished, under review or embargo vulnerability for software, equipments or hardware.",
-  "meta-category": "network",
+  "meta-category": "vulnerability",
   "uuid": "81650945-f186-437b-8945-9f31715d32da",
   "name": "vulnerability"
 }