Fix get_cloud_platforms config usage.

test/runner/lib/cloud/__init__.py

@@ -43,10 +43,11 @@ def initialize_cloud_plugins():
 
 def get_cloud_platforms(args, targets=None):
     """
-    :type args: IntegrationConfig
+    :type args: TestConfig
     :type targets: tuple[IntegrationTarget] | None
     :rtype: list[str]
     """
+    if isinstance(args, IntegrationConfig):
         if args.list_targets:
             return []