Merge pull request #20 from Azure-Samples/jmprieur/msal40

Update to MSAL 4.0

Author: jmprieur

active-directory-wpf-msgraph-v2/active-directory-wpf-msgraph-v2.csproj

@@ -100,7 +100,7 @@
   </ItemGroup>
   <ItemGroup>
     <PackageReference Include="Microsoft.Identity.Client">
-      <Version>3.0.8</Version>
+      <Version>4.0.0</Version>
     </PackageReference>
   </ItemGroup>
   <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />