Unmute SearchWithRandomDisconnectsIT (resolved by #136889) (#137763) (#137769)

Author: benchaplin

muted-tests.yml

@@ -197,9 +197,6 @@ tests:
 - class: org.elasticsearch.action.RejectionActionIT
   method: testSimulatedSearchRejectionLoad
   issue: https://github.com/elastic/elasticsearch/issues/125901
-- class: org.elasticsearch.search.basic.SearchWithRandomDisconnectsIT
-  method: testSearchWithRandomDisconnects
-  issue: https://github.com/elastic/elasticsearch/issues/122707
 - class: org.elasticsearch.xpack.test.rest.XPackRestIT
   method: test {p0=transform/transforms_reset/Test force reseting a running transform}
   issue: https://github.com/elastic/elasticsearch/issues/126240