Mute org.elasticsearch.xpack.esql.qa.multi_node.GenerativeIT test #134407

muted-tests.yml

@@ -449,6 +449,9 @@ tests:
 - class: org.elasticsearch.indices.stats.IndexStatsIT
   method: testFilterCacheStats
   issue: https://github.com/elastic/elasticsearch/issues/124447
+- class: org.elasticsearch.xpack.esql.qa.multi_node.GenerativeIT
+  method: test
+  issue: https://github.com/elastic/elasticsearch/issues/134407
 
 # Examples:
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