Mute org.elasticsearch.xpack.esql.ccq.MultiClusterSpecIT test {date.IN operator with null in list, doesn't find match} elastic#120348

Author: elasticsearchmachine

muted-tests.yml

@@ -462,3 +462,6 @@ tests:
 - class: org.elasticsearch.xpack.searchablesnapshots.RetrySearchIntegTests
   method: testRetryPointInTime
   issue: https://github.com/elastic/elasticsearch/issues/120442
+- class: org.elasticsearch.xpack.esql.ccq.MultiClusterSpecIT
+  method: test {date.IN operator with null in list, doesn't find match}
+  issue: https://github.com/elastic/elasticsearch/issues/120348