Mute org.elasticsearch.xpack.ml.integration.ClassificationIT testWithOnlyTrainingRowsAndTrainingPercentIsFifty_DependentVariableIsBoolean elastic#121680

Author: elasticsearchmachine

muted-tests.yml

@@ -552,3 +552,6 @@ tests:
 - class: org.elasticsearch.xpack.esql.action.CrossClusterAsyncQueryStopIT
   method: testStopQueryLocal
   issue: https://github.com/elastic/elasticsearch/issues/121672
+- class: org.elasticsearch.xpack.ml.integration.ClassificationIT
+  method: testWithOnlyTrainingRowsAndTrainingPercentIsFifty_DependentVariableIsBoolean
+  issue: https://github.com/elastic/elasticsearch/issues/121680