add another missing reference

Author: jennyf19

5-WebApp-AuthZ/5-2-Groups/WebApp-OpenIDConnect-DotNet.csproj

@@ -19,6 +19,7 @@
 
   <ItemGroup>
     <PackageReference Include="Microsoft.Graph" Version="1.21.0" />
+    <PackageReference Include="Microsoft.Identity.Web" Version="0.1.0-localbuild" />
     <PackageReference Include="Microsoft.Identity.Web.UI" Version="0.1.0-localbuild" />
   </ItemGroup>