Mute org.elasticsearch.xpack.test.rest.XPackRestIT test {p0=transform/transforms_start_stop/Test schedule_now on an already started transform} elastic#120720

Author: elasticsearchmachine

muted-tests.yml

@@ -438,3 +438,6 @@ tests:
 - class: org.elasticsearch.xpack.esql.qa.mixed.MixedClusterEsqlSpecIT
   method: test {date.Implicit casting strings to dates for IN operator SYNC}
   issue: https://github.com/elastic/elasticsearch/issues/120159
+- class: org.elasticsearch.xpack.test.rest.XPackRestIT
+  method: test {p0=transform/transforms_start_stop/Test schedule_now on an already started transform}
+  issue: https://github.com/elastic/elasticsearch/issues/120720