Fix flaky test DBCompactionTest::DeleteFileRange (#4776)

Summary:
The test has been failing sporadically probably because the configured compaction options were actually unused. Verified that by the following:
```
~/gtest-parallel/gtest-parallel ./db_compaction_test --gtest_filter=DBCompactionTest.DeleteFileRange --repeat=1000
```
Pull Request resolved: https://github.com/facebook/rocksdb/pull/4776

Differential Revision: D13441052

Pulled By: maysamyabandeh

fbshipit-source-id: d35075b9e6cef9b9c9d0d571f9cd72ade8eda55d

db/db_compaction_test.cc

@@ -1594,7 +1594,7 @@ TEST_F(DBCompactionTest, DeleteFileRange) {
   // Note that we don't delete level 0 files
   compact_options.change_level = true;
   compact_options.target_level = 1;
-  ASSERT_OK(dbfull()->TEST_CompactRange(0, nullptr, nullptr));
+  ASSERT_OK(db_->CompactRange(compact_options, nullptr, nullptr));
 
   ASSERT_OK(
       DeleteFilesInRange(db_, db_->DefaultColumnFamily(), nullptr, nullptr));