[integ-tests] Change the wrong version of test_build_image_wrong_pcluster_version to 3.9.3

The 2.8.1 AMI has been deprecated

Signed-off-by: Hanwen <hanwenli@amazon.com>

Author: hanwen-cluster

tests/integration-tests/tests/createami/test_createami.py

@@ -547,7 +547,7 @@ def test_build_image_wrong_pcluster_version(
 ):
     """Test error message when AMI provided was baked by a pcluster whose version is different from current version"""
     current_version = get_installed_parallelcluster_version()
-    wrong_version = "2.8.1"
+    wrong_version = "3.9.3"
     logging.info("Asserting wrong_version is different from current_version")
     assert_that(current_version != wrong_version).is_true()
     # Retrieve an AMI without 'aws-parallelcluster-<version>' in its name.