Don't swallow exceptions when checking GraphQL types

If the check script fails having a full stacktrace is beneficial for
debugging purposes.

In case of an error both versions of the script exit with error code 1.

scripts/frontend/graphql_possible_types_extraction.js

@@ -65,5 +65,6 @@ Options:
 
 main().catch((error) => {
   console.warn(error.message);
+  console.warn(error.stack);
   process.exitCode = 1;
 });