chore(deps): update dependency microsoft.graph.authentication to v2.21.0

This MR contains the following updates:

Package	Update	Change
Microsoft.Graph.Authentication	minor	2.20.0 -> 2.21.0

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Release Notes

microsoftgraph/msgraph-sdk-powershell (Microsoft.Graph.Authentication)

v2.21.0

Compare Source

What's Changed

• [v2] Weekly OpenApiDocs Refresh in https://github.com/microsoftgraph/msgraph-sdk-powershell/pull/2862
• [v2] Examples Update in https://github.com/microsoftgraph/msgraph-sdk-powershell/pull/2844
• Upgrades Moq version to 4.20.70, Microsoft.Graph.Core to 3.1.13 and Microsoft.PowerShell.SDK to 7.4.3 in https://github.com/microsoftgraph/msgraph-sdk-powershell/pull/2835
• Resets graph environment session to its original state in https://github.com/microsoftgraph/msgraph-sdk-powershell/pull/2842
• Adds parameter descriptions in script cmdlets in https://github.com/microsoftgraph/msgraph-sdk-powershell/pull/2845
• Update Set-MgUserPhotoContent.md by @​Agazoth in https://github.com/microsoftgraph/msgraph-sdk-powershell/pull/2863

New Contributors

• @​Agazoth made their first contribution in https://github.com/microsoftgraph/msgraph-sdk-powershell/pull/2863

Full Changelog: https://github.com/microsoftgraph/msgraph-sdk-powershell/compare/2.20.0...2.21.0

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