chore: fix floating timeout in integration tests (#1173)

Signed-off-by: Ilya Kheifets <ikheifets@splunk.com>

Author: ikheifets-splunk

integration_tests/test_poller_integration.py

@@ -701,7 +701,7 @@ def test_switches_group(self, setup_splunk):
         assert metric_count > 0
 
     def test_routers_group(self, setup_splunk):
-        time.sleep(20)
+        time.sleep(30)
         search_string = """| mpreview index=netmetrics | search profiles=routers_profile | stats dc(event) by host"""
         result_count, _ = run_retried_single_search(setup_splunk, search_string, 2)
         assert result_count == 2