test(profiling): assert live_heap_enabled is True when gotter is available

Default Cargo features enable live-heap, so when the cdylib is present the
smoke test should check the value, not only the type.

Author: vlad-scherbich

tests/profiling/test_native_heap_gotter.py

@@ -35,7 +35,8 @@ def test_native_heap_gotter_smoke() -> None:
         assert heap_gotter.install() is True
         assert heap_gotter.is_installed() is True
         assert heap_gotter.install() is True  # idempotent
-        assert isinstance(heap_gotter.live_heap_enabled(), bool)
+        # Default gotter builds enable the live-heap Cargo feature (ddheap:free).
+        assert heap_gotter.live_heap_enabled() is True
 
         blobs: list[tuple[str, int]] = []
         for i in range(200):