Validate that Desktop SSO Functionality works for MSAL v3. Update Service if it works as expected

[trwalke]

Is your feature request related to a problem? Please describe.
A number of first party client apps are running with MSAL 3 and they are in need of SSO for their scenario. The currently state of desktop SSO is to only support versions of MSAL.NET V4+

Describe the solution you'd like
Back port the functionality to MSAL V3+ so that more customers can take advantage of desktop SSO with MSAL.NET

Additional context
The changes here will only need to be made to the service to make it accept the MSAL V3 client sku

[bgavrilMS]

Should work with MSAL 3x, working with service folks now to get it enabled.