Altering URLs

### Is your feature request related to a problem?

No

### Describe the solution you'd like

Would like the ability to alter single/multiple parts of a URL in single statement.

Example:
```python
>>> URL("http://localhost:8080").with(host="newhost", port=80)
URL("http://newhost")
```

or this

```python
>>> URL("http://localhost:8080").with(port=80)
URL("http://localhost")
```

### Describe alternatives you've considered

N/A

### Additional context

_No response_

### Code of Conduct

- [X] I agree to follow the aio-libs Code of Conduct