Deps: update to elasticsearch8

These would need to be changed 

- https://github.com/python/pythondotorg/blob/82682b072d615ad7563aa64232c247ee54354142/pydotorg/settings/local.py#L29
- https://github.com/python/pythondotorg/blob/624dc3a3a5b0861b88a8cebfc76dc51bb33361d8/pydotorg/settings/cabotage.py#L29

_Originally posted by @JacobCoffee in https://github.com/python/pythondotorg/issues/2582#issuecomment-2364227239_
            