ci: Fix interactive ci (alibaba#4324)

Wait a while for compiler to get the latest graph schema.

See
https://github.com/alibaba/GraphScope/actions/runs/11812000683/job/32907096373

flex/interactive/sdk/python/gs_interactive/tests/test_robustness.py

@@ -18,6 +18,7 @@
 
 import os
 import sys
+from time import sleep
 
 import pytest
 
@@ -289,3 +290,6 @@ def test_custom_pk_name(
     records = result.fetch(1)
     assert len(records) == 1 and records[0]["$f0"] == 2
     start_service_on_graph(interactive_session, "1")
+    sleep(
+        3
+    )  # sleep for a while to make sure the compiler has updated to the new schema