With new datasource : ovh_dedicated_nasha_partition

[131]

Description

This pull request adds a new computed field partitions_list to the ovh_dedicated_nasha data source. The field is populated by calling the GET /dedicated/nasha/{serviceName}/partition endpoint, which returns an array of partition names ([]string). This change allows users to retrieve all partition names for a given NAS-HA service in their Terraform configurations.

Motivation/Context:

Allows Terraform users to dynamically fetch and manage partitions for a specific NAS-HA service.
Enhances the data source by providing more detailed information about the partitions available.

Dependencies:

No additional dependencies are required beyond the existing OVH client library.

[amstuta]

Thanks for your contribution @131 :)