Fix test failure.
Fix test failure.

The most recent SDK for 2.2.1xx pinned netstandard.library to 2.0.3 due to
https://github.com/dotnet/sdk/issues/2410.

This commit changes the expected version to match.

livarcocc/cli-1,dasMulli/cli,dasMulli/cli,johnbeisner/cli,dasMulli/cli,johnbeisner/cli,johnbeisner/cli,livarcocc/cli-1,livarcocc/cli-1