IsValidOnlineHost missing valid sovereign cloud host addresses

[whobday]

PowerPlatform-DataverseServiceClient/src/GeneralTools/DataverseClient/Client/Utils/Utils.cs

Line 259 in 03fa4d1

public static bool IsValidOnlineHost(Uri hostUri)

It's not possible to connect to sovereign clouds not listed above using a connection string and the dvsc. I've verified that I can create a connection if I bypass using connection strings.

Ideally, there would be a means for expanding the list of valid online endpoints, rather than explicitly including the specific clouds.

[MattB-msft]

This is intended to be maintained by the teams managing Geo Expansion.
@tehcrashxor for Tagging the right team.