Unmute ClusterDisruptionIT#testAckedIndexing

We've been running this test in a loop in elastic#126996 and it doesn't fail in the main branch

Author: arteam

muted-tests.yml

@@ -86,9 +86,6 @@ tests:
 - class: org.elasticsearch.versioning.ConcurrentSeqNoVersioningIT
   method: testSeqNoCASLinearizability
   issue: https://github.com/elastic/elasticsearch/issues/117249
-- class: org.elasticsearch.discovery.ClusterDisruptionIT
-  method: testAckedIndexing
-  issue: https://github.com/elastic/elasticsearch/issues/117024
 - class: org.elasticsearch.xpack.inference.InferenceRestIT
   method: test {p0=inference/40_semantic_text_query/Query a field that uses the default ELSER 2 endpoint}
   issue: https://github.com/elastic/elasticsearch/issues/117027