Change path for stacklight tests

Change-Id: I4f779fbf2ae3954ad0bd6245f3e694c859447c1a
diff --git a/tcp_tests/tests/system/test_upgrade_stacklight.py b/tcp_tests/tests/system/test_upgrade_stacklight.py
index afad0c8..56f6a79 100644
--- a/tcp_tests/tests/system/test_upgrade_stacklight.py
+++ b/tcp_tests/tests/system/test_upgrade_stacklight.py
@@ -51,7 +51,7 @@
             'cfg01',
             '/root/stacklight-pytest/stacklight_tests/',
             'tests',
-            'tests/prometheus')
+            'tests_alerts.py')
 
 # Download report
         stacklight_deployed.download_sl_test_report(