message: Update confluent.json
  Updating Email Regex pattern
diff: },
  "emailAddress": {
  "description": "Email address",
  - "pattern": "^[\\w\\.\\-+!%\"\\s]+@[a-zA-Z_]+?\\.[a-zA-Z]{2,3}$",
  + "pattern": "^[\\w\\.\\-+!%\"\\s]+@[a-zA-Z0-9_\\-]+?\\.[a-zA-Z0-9]{2,7}$",
  "type": "string"
  }
  }
  