`local_container_links` example doesn't support `python>=3.11` due to old `bottle-redis` dependency.

[hartikainen]

The bottle-redis dependency used in local_container_links example is almost 10 years old and does not support python>=3.11. It would be nice to replace the package so that a newer python versions can be used. bottle-redis functionality is quite trivial and would only require minor changes in server.py to work without it.