[core][streaming][python] Fix asyncio.wait coroutines args deprecated…

… warnings ray-project#40292

Passing coroutines directly to asyncio.wait is deprecating (warnings in >3.8, and deprecated >3.10)

We should not be doing it.

python/ray/_raylet.pyx

@@ -384,8 +384,10 @@ class StreamingObjectRefGenerator:
         ref = core_worker.peek_object_ref_stream(
             self._generator_ref)
         # TODO(swang): Avoid fetching the value.
-        ready, unready = await asyncio.wait([self.suppress_exceptions(ref)],
-                                            timeout=timeout_s)
+        ready, unready = await asyncio.wait(
+            [asyncio.create_task(self.suppress_exceptions(ref))],
+            timeout=timeout_s
+        )
         if len(unready) > 0:
             return ObjectRef.nil()