Unmute SecureHdfsSearchableSnapshotsIT (#116044)

Closes #115995

Author: mark-vieira

muted-tests.yml

@@ -274,8 +274,6 @@ tests:
 - class: org.elasticsearch.action.search.PointInTimeIT
   method: testPITTiebreak
   issue: https://github.com/elastic/elasticsearch/issues/115810
-- class: org.elasticsearch.xpack.searchablesnapshots.hdfs.SecureHdfsSearchableSnapshotsIT
-  issue: https://github.com/elastic/elasticsearch/issues/115995
 - class: org.elasticsearch.index.reindex.ReindexNodeShutdownIT
   method: testReindexWithShutdown
   issue: https://github.com/elastic/elasticsearch/issues/115996