chore(deps): update dependency microsoft.graph.authentication to v2.8.0

This MR contains the following updates:

Package	Update	Change
Microsoft.Graph.Authentication	minor	2.7.0 -> 2.8.0

---

⚠ Dependency Lookup Warnings ⚠

Warnings were logged while processing this repo. Please check the logs for more information.

---

Release Notes

microsoftgraph/msgraph-sdk-powershell

v2.8.0: Release

What's Changed

• Refreshes the SDK with the latest APIs in #​2368.
• Adds documentation for Authentication cmdlets in https://github.com/microsoftgraph/msgraph-sdk-powershell/pull/2307.
• Fixes missing cmdlets/API path in 2.7.0 (now unlisted) in #​2368.
• Fixes translation of /me to /users/{user-id} for Find-MgGraphCommand in https://github.com/microsoftgraph/msgraph-sdk-powershell/pull/2317
• Updates examples in https://github.com/microsoftgraph/msgraph-sdk-powershell/pull/2330

Full Changelog: https://github.com/microsoftgraph/msgraph-sdk-powershell/compare/2.6.1...2.8.0

---

Configuration

📅 Schedule: Branch creation - At any time (no schedule defined), Automerge - At any time (no schedule defined).

🚦 Automerge: Disabled by config. Please merge this manually once you are satisfied.

♻ Rebasing: Whenever MR becomes conflicted, or you tick the rebase/retry checkbox.

🔕 Ignore: Close this MR and you won't be reminded about this update again.

---

• If you want to rebase/retry this MR, check this box

---

This MR has been generated by Renovate Bot.