This is only a tiny change in one of the type tests. I was playing with different testing tools and noticed that this particular test is only passing using tsd (both expect-type and tstyche report an error). After this change, the test is still passing using tsd and the other tools do not report an error anymore. Must be a bug in tsd, because the same test is also passing with negated expectNotType(). These are huge typings, so I will not investigate.

By the way, I bump into this issue while trying out new implementation of TSTyche which does not patch TypeScript any more (reference: #6033 (comment)). It is still fresh and most likely has defects. So far all works very well with fastify type tests.

Checklist

• run npm run test && npm run benchmark --if-present
• tests and/or benchmarks are included
• documentation is changed or added
• commit message and code follows the Developer's Certification of Origin
  and the Code of conduct