[SUPPORT] Wrong file path for commit-marker-file in Consistent-Bucket-Index layout

In Consistent-Bucket-Index file layout:
there are two type of file for each versioned bucket metadata:
1. `{instant}.hashing_metadata`: created in each bucket resizing.
2. `{instant}.commit`: created after `instant` is completed.

All these two type of files should all be stored in this path:

When `loadMetadata`, will load all these two type of files from above path.

But, I find that the `{instant}.commit` file will not be stored in this hash-metadata path.

This file will be stored in data path, which is `{basePath}/{partitionPath}/{instant}.commit`. So when `ConsistentBucketIndexUtils` load metadata for a partition, all files of this type will not be loaded because they are stored in the wrong location.

For example:
> .hashing_metadata


> .commit


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**Describe the problem you faced**

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**To Reproduce**

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**Expected behavior**

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**Environment Description**

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* Spark version :

* Hive version :

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* Storage (HDFS/S3/GCS..) :

* Running on Docker? (yes/no) :

**Additional context**

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**Stacktrace**

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Start with ConsistentBucketIndexUtils and its loadMetadata path, then trace where the .commit file is written for the Consistent-Bucket-Index layout. Compare that location with the .hashing_metadata location described in the issue. Done means commit-marker files are stored where metadata loading expects them and are included when loading a partition.

Written by the indexing model from the issue text.