chore(deps): update dependency az.accounts to v4

This MR contains the following updates:

Package	Update	Change
Az.Accounts	major	3.0.4 -> 4.0.0

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Release Notes

Azure/azure-powershell (Az.Accounts)

v4.0.0

• [Breaking Change] Removed alias 'Resolve-Error' for the cmdlet 'Resolve-AzError'.
• Updated the 'Get-AzAccessToken' breaking change warning message.
• Added Long Running Operation Support for Invoke-AzRest command.

v3.0.5

• Fixed the issue that 'Export-AzSshConfig' and 'Enter-AzVM' from Az.Ssh are not able to use when WAM is enabled.
• Added breaking change preannouncement for the removal of alias 'Resolve-Error'. #​26189
• Integrated new detection library to expand the scope of secrets.

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