ruff

b2d1fcf7 - add instructions on line-level suppression to file-level suppression warning (#8052)

add instructions on line-level suppression to file-level suppression warning (#8052) ## Summary In #6157 a warning was introduced when users use `ruff: noqa` suppression in-line instead of at the file-level. I had this trigger today after forgetting about it, and the warning is an excellent improvement. I knew immediately what the issue was because I raised it previously, but on reading the warning I'm not sure it would be so obvious to all users. This PR extends the error with a short sentence explaining that line-level suppression should omit the `ruff:` prefix. ## Test Plan Not sure it's necessary for such a trivial change :)