refactor(infra): record legacy data to improve testing stability (#4590)

tests/fixtures/tsconfig.json

@@ -8,6 +8,6 @@
     "module": "NodeNext",
     "resolveJsonModule": true
   },
-  "include": [".", "./*.json"],
+  "include": [".", "./*.json", "./legacy/**/*.json"],
   "exclude": ["./tsconfig.json"]
 }