Mute org.elasticsearch.xpack.ml.integration.ClassificationIT testDependentVariableIsNested #121458

Author: elasticsearchmachine

muted-tests.yml

@@ -521,3 +521,6 @@ tests:
 - class: org.elasticsearch.xpack.ml.integration.ClassificationIT
   method: testStopAndRestart
   issue: https://github.com/elastic/elasticsearch/issues/121433
+- class: org.elasticsearch.xpack.ml.integration.ClassificationIT
+  method: testDependentVariableIsNested
+  issue: https://github.com/elastic/elasticsearch/issues/121458