Support `copy.replace` from 3.13

[sobolevn]

There are two things that we need to do:

1. Add 3.13 to CI
2. Add __replace__ magic method https://docs.python.org/3.13/library/copy.html#object.__replace__ to Container base class, so we can support https://docs.python.org/3.13/library/copy.html#copy.replace