add third party to exclude (#31858)

third_party as well
old-commit-hash: 98918b6afef5964b6e149ee0c46c785b2518891d

.vscode/settings.json

@@ -21,6 +21,7 @@
     "common/**",
     "selfdrive/**",
     "system/**",
+    "third_party/**",
     "tools/**",
   ]
 }