test: add integration tests

Signed-off-by: Abhishek Kumar <[email protected]>

Author: shwstppr

.github/workflows/ci.yml

@@ -89,7 +89,10 @@ jobs:
                   smoke/test_nested_virtualization
                   smoke/test_set_sourcenat
                   smoke/test_webhook_lifecycle
-                  smoke/test_purge_expunged_vms",
+                  smoke/test_purge_expunged_vms
+                  smoke/test_extension_lifecycle
+                  smoke/test_extension_custom_action_lifecycle
+                  smoke/test_extension_custom",
                 "smoke/test_network
                   smoke/test_network_acl
                   smoke/test_network_ipv6