chore(deps): update dependency az.accounts to v2.12.2

This MR contains the following updates:

Package	Update	Change
Az.Accounts	patch	2.12.1 -> 2.12.2

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Release Notes

Azure/azure-powershell

v2.12.2

• Fixed 'AzureSynapseAnalyticsEndpointResourceId' of 'USGovernment' environment.
• Updated Azure.Core to 1.31.0.
• Updated the reference of Azure PowerShell Common to 1.3.75-preview.

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