Reduce flakiness of test_transform_aborted_if_recursion_limited (#2637)

tests/test_transforms.py

@@ -274,7 +274,7 @@ def transform_call(node: Call) -> Const:
         )
 
         original_limit = sys.getrecursionlimit()
-        sys.setrecursionlimit(500 if IS_PYPY else 1000)
+        sys.setrecursionlimit(300 if IS_PYPY else 1000)
 
         try:
             with pytest.warns(UserWarning) as records: