Autofac warning about "ContainerBuilder.Update" method

[AndreiMaz]

'ContainerBuilder.Update(IContainer)' is obsolete: 'Containers should generally be considered immutable. Register all of your dependencies before building/resolving. If you need to change the contents of a container, you technically should rebuild the container. This method may be removed in a future major release.'

we have to fix it

[agametov]

In future, may be helpful for fix autofac/Autofac#811

[AndreiMaz]

@agametov Thanks, Rustam!