fix(ci): assert payment_links instead of a missing payment_intents service

The generated client never exposed payment_intents, so the surface smoke test failed on every Python version.

Co-authored-by: Cursor <cursoragent@cursor.com>

Author: princemuichkine

tests/test_generated_surface.py

@@ -15,7 +15,7 @@ def test_client_services(self):
         )
         # spot-check newly added surfaces
         self.assertTrue(hasattr(c, "charges"))
-        self.assertTrue(hasattr(c, "payment_intents"))
+        self.assertTrue(hasattr(c, "payment_links"))
 
         expected = sorted(
             name