Update Microsoft.IdentityModel.Clients.ActiveDirectory version to 3.13.9

Author: JunTaoLuo

build/dependencies.props

@@ -2,7 +2,7 @@
   <PropertyGroup>
     <AspNetCoreVersion>2.0.0-preview2-*</AspNetCoreVersion>
     <CoreFxVersion>4.4.0-*</CoreFxVersion>
-    <IdentityModelActiveDirectoryVersion>3.13.8</IdentityModelActiveDirectoryVersion>
+    <IdentityModelActiveDirectoryVersion>3.13.9</IdentityModelActiveDirectoryVersion>
     <IdentityModelOpenIdVersion>2.1.3</IdentityModelOpenIdVersion>
     <InternalAspNetCoreSdkVersion>2.1.0-*</InternalAspNetCoreSdkVersion>
     <JsonNetVersion>10.0.1</JsonNetVersion>