`handleError` incorrectly sets `extensions.http.unexpected` instead of `extensions.unexpected`

[rwe]

Describe the bug

This is done in only one place and is obviously unintended:

https://github.com/graphql-hive/graphql-yoga/blob/c3e7fddc8ae49da50263ac74fa9e6f0814f70c34/packages/graphql-yoga/src/error.ts#L98-L116

Your Example Website or App

https://localhost

Steps to Reproduce the Bug or Issue

1. Go to above link

Expected behavior

It sets the correct extension property in that fallback case.

Screenshots or Videos

No response

Platform

• GitHub

Additional context

No response

[ardatan]

Thanks for creating the issue! PRs are welcome for the fix!