## Summary
This PR adds a new `db` parameter to `Parameters::new` for
https://github.com/astral-sh/ruff/pull/21445. This change creates a
large diff so thought to split it out as it's just a mechanical change.
The `Parameters::new` method not only creates the `Parameters` but also
analyses the parameters to check what kind it is. For `ParamSpec`
support, it's going to require the `db` to check whether the annotated
type is `ParamSpec` or not. For the current set of parameters that isn't
required because it's only checking whether it's dynamic or not which
doesn't require `db`.
98681b9356