test: add trailing commas in test/node-api

PR-URL: https://github.com/nodejs/node/pull/46384
Reviewed-By: Michael Dawson <midawson@redhat.com>
Reviewed-By: James M Snell <jasnell@gmail.com>

test/node-api/test_threadsafe_function/test_uncaught_exception.js

@@ -23,5 +23,5 @@ binding.CallIntoModule(
   'resource_name',
   common.mustCall(function finalizer() {
     throw new Error('finalizer error');
-  })
+  }),
 );