Fix lint errors for .mjs files in scripts/

scripts/.eslintrc

 {
   "env": {
-    "node": true,
+    "node": true
   },
   "parserOptions": {
     "sourceType": "script"
@@ -9,5 +9,11 @@
     "@typescript-eslint/no-var-requires": "off",
     "no-console": "off",
     "react-hooks/rules-of-hooks": "off"
-  }
+  },
+  "overrides": [
+    {
+      "files": ["*.mjs"],
+      "parserOptions": { "sourceType": "module" }
+    }
+  ]
 }