Bump Microsoft.AspNetCore.All

Bumps [Microsoft.AspNetCore.All](https://github.com/aspnet/Universe) from 2.0.0 to 2.0.9.
- [Release notes](https://github.com/aspnet/Universe/releases)
- [Changelog](https://github.com/aspnet/Universe/blob/master/docs/CrossRepoBreakingChanges.md)
- [Commits](aspnet/Universe@2.0.0...2.0.9)

Security/ASP.NET Core 2.0/Demos/CookieAuthFromScratch/CookieAuthFromScratch.csproj

@@ -10,7 +10,7 @@
   </ItemGroup>
 
   <ItemGroup>
-    <PackageReference Include="Microsoft.AspNetCore.All" Version="2.0.0" />
+    <PackageReference Include="Microsoft.AspNetCore.All" Version="2.0.9" />
   </ItemGroup>
 
 </Project>