Reduce fragility of Nuget packaging for C# binding
<?xml version="1.0" encoding="utf-8"?>
<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
- <ItemGroup Condition="'$(OS)' == 'Windows_NT'">
+ <ItemGroup Condition="$([MSBuild]::IsOsPlatform('Windows'))">
<Content Include="$(MSBuildThisFileDirectory)../x64/native/windows/mongocrypt.dll">
<CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
<Link>mongocrypt.dll</Link>
