can not get nvme ns immediately after create nvme ctrl

[guazhangRH]

maybe need wait a sec after created nvme ctrl in nvme_test

======================================================================
ERROR: test_ns_info (nvme_test.NVMeTestCase.test_ns_info)
Test namespace info
----------------------------------------------------------------------
Traceback (most recent call last):
  File "/root/rpmbuild/BUILD/libblockdev-3.2.0/tests/nvme_test.py", line 92, in test_ns_info
    info = BlockDev.nvme_get_namespace_info(self.nvme_ns_dev)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
gi.repository.GLib.GError: g-bd-nvme-error-quark: Failed to open device '/dev/nvme0n1': No such file or directory (1)

======================================================================
FAIL: test_connect_multiple_ns (nvme_test.NVMeFabricsTestCase.test_connect_multiple_ns)
Test connect and disconnect multiple namespaces
----------------------------------------------------------------------
Traceback (most recent call last):
  File "/root/rpmbuild/BUILD/libblockdev-3.2.0/tests/nvme_test.py", line 443, in test_connect_multiple_ns
    self.assertEqual(len(namespaces), NUM_NS)
AssertionError: 1 != 3
----------------------------------------------------------------------

nvme-cli-2.10.2-1.el10.x86_64
nvmetcli-0.8-1.el10.noarch

$ git diff tests/utils.py 
diff --git a/tests/utils.py b/tests/utils.py
index a9b8e187..9fe93605 100644
--- a/tests/utils.py
+++ b/tests/utils.py
@@ -251,7 +251,7 @@ def find_nvme_ctrl_devs_for_subnqn(subnqn):
                         dev_paths += [path]
                 except:
                     pass
-
+    time.sleep(1)
     ret, out, err = run_command("nvme list --output-format=json --verbose")
     if ret != 0:
         raise RuntimeError("Error getting NVMe list: '%s %s'" % (out, err))

for i in $(seq 30);do python3 run_tests.py -s nvme_test || break;done

can not reproduce the error after apply the patch, maybe someone have a better solution for the error.
if no, I will create a MR for it.