Mute org.elasticsearch.backwards.MixedClusterClientYamlTestSuiteIT test {p0=synonyms/110_synonyms_invalid/Reload index with an invalid synonym rule with lenient set to false} #121117

Author: elasticsearchmachine

muted-tests.yml

@@ -476,3 +476,6 @@ tests:
 - class: org.elasticsearch.xpack.security.profile.ProfileIntegTests
   method: testSuggestProfilesWithHint
   issue: https://github.com/elastic/elasticsearch/issues/121116
+- class: org.elasticsearch.backwards.MixedClusterClientYamlTestSuiteIT
+  method: test {p0=synonyms/110_synonyms_invalid/Reload index with an invalid synonym rule with lenient set to false}
+  issue: https://github.com/elastic/elasticsearch/issues/121117