Unmute tests

Author: carlosdelest

muted-tests.yml

@@ -351,15 +351,6 @@ tests:
 - class: org.elasticsearch.xpack.inference.services.cohere.CohereServiceTests
   method: testInfer_StreamRequest
   issue: https://github.com/elastic/elasticsearch/issues/114385
-- class: org.elasticsearch.backwards.MixedClusterClientYamlTestSuiteIT
-  method: test {p0=synonyms/60_synonym_rule_get/Synonym set not found}
-  issue: https://github.com/elastic/elasticsearch/issues/114432
-- class: org.elasticsearch.backwards.MixedClusterClientYamlTestSuiteIT
-  method: test {p0=synonyms/60_synonym_rule_get/Get a synonym rule}
-  issue: https://github.com/elastic/elasticsearch/issues/114443
-- class: org.elasticsearch.backwards.MixedClusterClientYamlTestSuiteIT
-  method: test {p0=synonyms/60_synonym_rule_get/Synonym rule not found}
-  issue: https://github.com/elastic/elasticsearch/issues/114444
 - class: org.elasticsearch.xpack.inference.InferenceRestIT
   method: test {p0=inference/30_semantic_text_inference/Calculates embeddings using the default ELSER 2 endpoint}
   issue: https://github.com/elastic/elasticsearch/issues/114412