`azd tool install GitHub.copilot-chat` reports installed but verification failed on Windows and Linux

[Menghua1]

Description:
On Windows and Linux, azd tool install GitHub.copilot-chat fails with: GitHub Copilot Chat VS Code Extension was installed but verification failed

Steps to Reproduce:

1. Install the latest daily version of azd.
2. Run azd config set alpha.tool on.
3. Run azd tool install GitHub.copilot-chat.

Environment:

• Azd version: azd version 1.26.0-beta.1-daily.6280267 (commit 0632821) (daily).
• OS: Windows, Linux.

Expected Behavior:
azd tool install GitHub.copilot-chat should complete successfully without a verification error on both Windows and Linux.

@rajeshkamal5050 and @wbreza for notification.