Update schema.json

Author: natalialuzuriaga

schemas/gov/schema.json

@@ -283,7 +283,7 @@
                     "format": "date-time",
                     "description": "Date when the project was last modified"
                 },
-                "metaDataLastUpdated": {
+                "metadataLastUpdated": {
                     "type": "string",
                     "format": "date-time",
                     "description": "Date when metadata was last updated"
@@ -347,4 +347,4 @@
         "AIUseCaseID"
     ],
     "additionalProperties": true
-}
+}