fix flaky opensearch-project#5364 (opensearch-project#13910) (opensea…

…rch-project#13914)

(cherry picked from commit f50121a)

Signed-off-by: Sarthak Aggarwal <sarthagg@amazon.com>
Signed-off-by: github-actions[bot] <github-actions[bot]@users.noreply.github.com>
Co-authored-by: github-actions[bot] <github-actions[bot]@users.noreply.github.com>
Signed-off-by: kkewwei <kkewwei@163.com>

server/src/test/java/org/opensearch/index/engine/InternalEngineTests.java

@@ -1873,7 +1873,7 @@ public void testForceMergeWithSoftDeletesRetentionAndRecoverySource() throws Exc
         try (
             Store store = createStore();
             InternalEngine engine = createEngine(
-                config(indexSettings, store, createTempDir(), newMergePolicy(), null, null, globalCheckpoint::get)
+                config(indexSettings, store, createTempDir(), newMergePolicy(random(), false), null, null, globalCheckpoint::get)
             )
         ) {
             int numDocs = scaledRandomIntBetween(10, 100);