fix: pin yargs-parser to 21 for VSCode compatibility (#562)

Author: himanshusinghs

package-lock.json

@@ -115,7 +115,7 @@
     "oauth4webapi": "^3.8.0",
     "openapi-fetch": "^0.14.0",
     "ts-levenshtein": "^1.0.7",
-    "yargs-parser": "^22.0.0",
+    "yargs-parser": "^21.1.1",
     "zod": "^3.25.76"
   },
   "engines": {