Sample of app config provider keeps failing. Disable the noise. (#35730)

* Sample of app config provider keeps failing. Disable the noise.

* update

* update

* update

Author: xiangyan99

scripts/devops_tasks/test_run_samples.py

@@ -79,6 +79,11 @@
 
 # Add your library + sample file if you do not want a particular sample to be run
 IGNORED_SAMPLES = {
+    "azure-appconfiguration-provider": [
+        "key_vault_reference_customized_clients_sample.py",
+        "aad_sample.py",
+        "key_vault_reference_sample.py"
+    ],
     "azure-ai-ml": [
         "ml_samples_authentication_sovereign_cloud.py"
     ],