Updating to MSAL.ENT 2.7.1.

Author: jmprieur

WebApp-OpenIDConnect-DotNet/WebApp-OpenIDConnect-DotNet.csproj

@@ -4,7 +4,7 @@
     <RootNamespace>WebApp_OpenIDConnect_DotNet</RootNamespace>
   </PropertyGroup>
   <ItemGroup>
-    <PackageReference Include="Microsoft.Identity.Client" Version="2.7.0" />
+    <PackageReference Include="Microsoft.Identity.Client" Version="2.7.1" />
     <PackageReference Include="Microsoft.AspNetCore" Version="2.2.0" />
     <PackageReference Include="Microsoft.AspNetCore.Authentication.Cookies" Version="2.2.0" />
     <PackageReference Include="Microsoft.AspNetCore.Authentication.OpenIdConnect" Version="2.2.0" />