(🎁)  list changes

When `up` doots a dependency, there is no indication (if an install is required then you have some info). I would like to know exactly what is going on

# Suggestion
Eg: `pendulum = "^2"` is specified in pyproject, but is currently locked and installed at `2.1.2` so no install will happen:
```
👉 poetry up

- Uping pendulum: ("^2" -> "^2.1.2")
```

