An error message appears after signing out from all accounts

[v-chenzha]

OS: All
Build Version: 20250213.1

Repro Steps:

1. Sign out from all accounts in VS Code.
2. Check whether the sign-out is successful.

Expect:
The sign-out is successful without any errors.

Actual:
An error message appears after signing out.

More Info:
This issue doesn't reproduce when setting "Microsoft-authentication: Implementation" to "classic".