azurerm_storage_account - Remove TLS1_3 as an valid value for min_tls_version

[magodo]

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Description

Remove TLS1_3 as an valid value for min_tls_version for azurerm_storage_account. This is because:

Azure Storage supports two versions of the TLS protocol: 1.2 and 1.3. While TLS 1.3 is now supported, the ability to enforce it as the minimum TLS version for Azure Storage accounts isn't currently supported. The recommended minimum TLS version is TLS 1.2. Clients using the latest TLS versions will automatically negotiate to use TLS 1.3 if available.

(https://learn.microsoft.com/en-us/azure/storage/common/transport-layer-security-configure-minimum-version?tabs=portal)

The service team is working on supporting TLS 1.3 as the minimum TLS version. Once supported, we can add it back. For now, this PR just remove it as a valid option to avoid confusion.

Related to: #26712

PR Checklist

• I have followed the guidelines in our Contributing Documentation.
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Changes to existing Resource / Data Source

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Change Log

Below please provide what should go into the changelog (if anything) conforming to the Changelog Format documented here.

• azurerm_resource - support for the thing1 property [GH-00000]

This is a (please select all that apply):

• Bug Fix
• New Feature (ie adding a service, resource, or data source)
• Enhancement
• Breaking Change

Related Issue(s)

Fixes #0000

AI Assistance Disclosure

• AI Assisted - This contribution was made by, or with the assistance of, AI/LLMs

Rollback Plan

If a change needs to be reverted, we will publish an updated version of the provider.

Changes to Security Controls

Are there any changes to security controls (access controls, encryption, logging) in this pull request? If so, explain.

Note

If this PR changes meaningfully during the course of review please update the title and description as required.