Mute org.elasticsearch.xpack.esql.qa.mixed.MixedClusterEsqlSpecIT test {range.Invalid boundaries date SYNC} #126083

Author: elasticsearchmachine

muted-tests.yml

@@ -498,3 +498,6 @@ tests:
 - class: org.elasticsearch.repositories.blobstore.testkit.analyze.GCSRepositoryAnalysisRestIT
   method: testRepositoryAnalysis
   issue: https://github.com/elastic/elasticsearch/issues/125668
+- class: org.elasticsearch.xpack.esql.qa.mixed.MixedClusterEsqlSpecIT
+  method: test {range.Invalid boundaries date SYNC}
+  issue: https://github.com/elastic/elasticsearch/issues/126083