fix: upgrade oas-normalize to fix a postman conversion issue (#672)

Author: erunion

package-lock.json

@@ -51,7 +51,7 @@
     "mime-types": "^2.1.35",
     "node-fetch": "^2.6.1",
     "oas": "^20.0.0",
-    "oas-normalize": "^8.1.1",
+    "oas-normalize": "^8.1.3",
     "open": "^8.2.1",
     "ora": "^5.4.1",
     "parse-link-header": "^2.0.0",