storage_clients wrong dependencies import

[Cerrix]

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Describe the bug Using dynamoDB requires to import the S3 storage client: from chainlit.data.storage_clients import S3StorageClient this package requires both boto3 and azure dependencies. It would be better to separate these 2 packages in order to use only the needed dependencies

To Reproduce Steps to reproduce the behavior:

1. do not install Azure in your environment
2. import from chainlit.data.storage_clients import S3StorageClient
3. get import error

Expected behavior Be succesful since Azure is not needed for S3 (and viceversa the AzureStorageClient does not need boto3)

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