Lint if `workspace.package.*` field is unused

### What it does

Identify when a `workspace.package` field is not inherited by any package

### Advantage

People will make assumptions off of what they see in `workspace.package`, making unused fields misleading

### Drawbacks

_No response_

### Example

```toml
[workspace.package]
description = "unused"
```

Could be written as:

```toml
[workspace.package]
```
