Update CopyOnWrite to 0.5.0 (#123)

Author: dfederm

Directory.Packages.props

@@ -7,7 +7,7 @@
     <CentralPackageTransitivePinningEnabled>true</CentralPackageTransitivePinningEnabled>
   </PropertyGroup>
   <ItemGroup>
-    <PackageVersion Include="CopyOnWrite" Version="0.3.8" />
+    <PackageVersion Include="CopyOnWrite" Version="0.5.0" />
     <PackageVersion Include="DotNet.Glob" Version="2.0.3" />
     <PackageVersion Include="ILRepack" Version="2.0.27" />
     <PackageVersion Include="Microsoft.Bcl.AsyncInterfaces" Version="8.0.0" />