refactor(arazzo): remove brackets around condition

The example indicates that when YAML format is translated
to JSON, the brackets SHOULD be added to the condition.

Author: char0n

src/arazzo.md

@@ -571,7 +571,7 @@ components:
       "workflowId": "refreshTokenWorkflowId",
       "criteria": [
         {
-          "condition": "{$statusCode == 401}"
+          "condition": "$statusCode == 401"
         }
       ]
     }