test: add mock client in UT for azurefile_dataplane_client.go

[Zhupku]

This pull request introduces a new ShareClientInterface to the azurefile package, refactors the existing code to use this interface, and adds mock implementations for testing. The main changes include defining the new interface, updating methods to use the interface, and modifying tests to use mock clients.

Introduction of ShareClientInterface:

• Added ShareClientInterface with methods for GetProperties, Create, Delete, and SetProperties in pkg/azurefile/azurefile_dataplane_client.go.
• Added newShareClient function to return an instance of ShareClientInterface.

Refactoring to use ShareClientInterface:

• Updated CreateFileShare method to use newShareClient instead of directly calling f.Client.NewShareClient.
• Updated DeleteFileShare method to use newShareClient.
• Updated ResizeFileShare method to use newShareClient.
• Updated GetFileShareQuota method to use newShareClient.

Testing improvements:

• Added mock implementation of ShareClientInterface for unit tests in pkg/azurefile/azurefile_dataplane_client_test.go.
• Modified tests to use the mock client and updated test cases for CreateFileShare, DeleteFileShare, ResizeFileShare, and GetFileShareQuota to check for successful operations instead of expecting errors. [1] [2] [3] [4]<!-- Thanks for sending a pull request! Here are some tips for you:

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Which issue(s) this PR fixes:

Fixes #

Requirements:

• uses conventional commit messages
• includes documentation
• adds unit tests
• tested upgrade from previous version

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[k8s-ci-robot]

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This pull-request has been approved by: Zhupku
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[k8s-ci-robot]

Hi @Zhupku. Thanks for your PR.

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[Zhupku]

There is no mock function in storage dataplane sdk and currently no wrapper in cloud provider for dataplane sdk. In order to implement the mock for ut, it will badly affect the production code readability. We decide not to do so.