ruff

24c1cf71 - [red-knot] Use unambiguous invalid-syntax-construct for suppression comment test (#15933)

[red-knot] Use unambiguous invalid-syntax-construct for suppression comment test (#15933) ## Summary I experimented with [not trimming trailing newlines in code snippets](https://github.com/astral-sh/ruff/pull/15926#discussion_r1940992090), but since came to the conclusion that the current behavior is better because otherwise, there is no way to write snippets without a trailing newline at all. And when you copy the code from a Markdown snippet in GitHub, you also don't get a trailing newline. I was surprised to see some test failures when I played with this though, and decided to make this test independent from this implementation detail.