Unmute FrozenSearchableSnapshotsIntegTests#testCreateAndRestorePartialSearchableSnapshot

The underlying failure `java.lang.AssertionError: Searchable snapshot directory does not support the operation [createOutput`
was fixed in #122006.

The automation bot was too aggressive in re-opening this issue.

Resolve #122693

Author: arteam

muted-tests.yml

@@ -344,9 +344,6 @@ tests:
 - class: org.elasticsearch.lucene.RollingUpgradeLuceneIndexCompatibilityTestCase
   method: testRestoreIndex {p0=[9.1.0, 8.19.0, 8.19.0]}
   issue: https://github.com/elastic/elasticsearch/issues/122691
-- class: org.elasticsearch.xpack.searchablesnapshots.FrozenSearchableSnapshotsIntegTests
-  method: testCreateAndRestorePartialSearchableSnapshot
-  issue: https://github.com/elastic/elasticsearch/issues/122693
 - class: org.elasticsearch.lucene.RollingUpgradeLuceneIndexCompatibilityTestCase
   method: testClosedIndexUpgrade {p0=[9.1.0, 9.1.0, 8.19.0]}
   issue: https://github.com/elastic/elasticsearch/issues/122694