fix: defaultCompressibleTypes regex issue

### Prerequisites

- [X] I have written a descriptive issue title
- [X] I have searched existing issues to ensure the bug has not already been reported

### Fastify version

4.28.0

### Plugin version

_No response_

### Node.js version

20.16.0

### Operating system

Windows

### Operating system version (i.e. 20.04, 11.3, 10)

10

### Description

If content-type is "[application/force-download]" defaultCompressibleTypes won't allow it.
Then it will goto
```js
const data = mimedb[type.split(';', 1)[0].trim().toLowerCase()]
if (data === undefined) return false
return data.compressible === true
}
```

In this [].split() will throw error.

### Link to code that reproduces the bug

_No response_

### Expected Behavior

_No response_