Mute org.elasticsearch.backwards.MixedClusterClientYamlTestSuiteIT test {p0=search/350_point_in_time/point-in-time with index filter} elastic#127741

Author: elasticsearchmachine

muted-tests.yml

@@ -438,7 +438,9 @@ tests:
 - class: org.elasticsearch.xpack.core.template.IndexTemplateRegistryRolloverIT
   method: testRollover
   issue: https://github.com/elastic/elasticsearch/issues/127692
-
+- class: org.elasticsearch.backwards.MixedClusterClientYamlTestSuiteIT
+  method: test {p0=search/350_point_in_time/point-in-time with index filter}
+  issue: https://github.com/elastic/elasticsearch/issues/127741
 
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