[ML] Unmute Cohere Mixed cluster tests (#130611)

(cherry picked from commit 829ae13)

# Conflicts:
#	muted-tests.yml

Author: davidkyle

muted-tests.yml

@@ -388,12 +388,6 @@ tests:
   method: "builds distribution from branches via archives extractedAssemble [bwcDistVersion: 8.2.1, bwcProject: bugfix, expectedAssembleTaskName:
     extractedAssemble, #2]"
   issue: https://github.com/elastic/elasticsearch/issues/119871
-- class: org.elasticsearch.xpack.inference.qa.mixed.CohereServiceMixedIT
-  method: testRerank
-  issue: https://github.com/elastic/elasticsearch/issues/130009
-- class: org.elasticsearch.xpack.inference.qa.mixed.CohereServiceMixedIT
-  method: testCohereEmbeddings
-  issue: https://github.com/elastic/elasticsearch/issues/130010
 - class: org.elasticsearch.cluster.metadata.ComposableIndexTemplateTests
   method: testMergeEmptyMappingsIntoTemplateWithNonEmptySettings
   issue: https://github.com/elastic/elasticsearch/issues/130050