[CELEBORN-2139] Fix the condition for using OSS storage

### What changes were proposed in this pull request?

Fix the condition for using OSS storage

### Why are the changes needed?

When OSS is enabled, the local disk should be used first if it is available.

### Does this PR introduce _any_ user-facing change?

NO

### How was this patch tested?

CI

Closes #3463 from xy2953396112/CELEBORN-2139.

Authored-by: xxx <953396112@qq.com>
Signed-off-by: mingji <fengmingxiao.fmx@alibaba-inc.com>
(cherry picked from commit 750aeef)
Signed-off-by: mingji <fengmingxiao.fmx@alibaba-inc.com>

Author: xy2953396112

worker/src/main/scala/org/apache/celeborn/service/deploy/worker/storage/StorageManager.scala

@@ -1146,7 +1146,7 @@ final private[worker] class StorageManager(conf: CelebornConf, workerSource: Abs
           fileName,
           s3FileInfo)
         return (s3Flusher.get, s3FileInfo, null)
-      } else if (hasOssStorage && location.getStorageInfo.OSSAvailable()) {
+      } else if (dirs.isEmpty && location.getStorageInfo.OSSAvailable()) {
         val shuffleDir =
           new Path(new Path(ossDir, conf.workerWorkingDir), s"$appId/$shuffleId")
         FileSystem.mkdirs(