Update VS Platform NuGet package version

[genlu]

the currently referenced version couldn't be published to NuGet.org due internal infra issue, so update the reference to the newer version that's available to avoid restore warning when using Roslyn package.

warning NU1603: Microsoft.CodeAnalysis.EditorFeatures.Text 4.4.0-3.final depends on Microsoft.VisualStudio.CoreUtility (>= 17.4.136-preview) but Microsoft.VisualStudio.CoreUtility 17.4.136-preview was not found. An approximate best match of Microsoft.VisualStudio.CoreUtility 17.4.203-preview was resolved.

triggering a test insertion to make sure it doesn't break anything
https://dev.azure.com/devdiv/DevDiv/_git/VS/pullrequest/429134

[Sergio0694]

"the currently referenced version couldn't be published to NuGet.org due internal infra issue"

Hey @genlu, do you know if that version still planned to be released eventually, or if current consumers of that just should switch to a toolset version from the nightly feed until the next 17.4 preview drops (or GA, not sure if there's another preview coming)? If it's the latter, would you know which exact Microsoft.Net.Compilers.Toolset version is the one matching the Roslyn build bundled with VS 17.4 P3, so we can use that for the time being? Thank you! 😄

[genlu]

@Sergio0694 I believe platform packages of vesion 17.4.136-preview will not be published to NuGet.org. But this won't affect any current consumers of Roslyn 17.4 packages, since those published to nuget.org doesn't reference this version, and ones that do are not published on nuget.org (i.e. they are on vs and dotnet feeds).

would you know which exact Microsoft.Net.Compilers.Toolset version is the one matching the Roslyn build bundled with VS 17.4 P3

I'm not sure I understand why you need to match the version, but it's 4.4.0-3.22505.14