ruff

a39a1df2 - [`FastAPI`] Add sub-diagnostic explaining why a fix was unavailable (`FAST002`) (#22565)

[`FastAPI`] Add sub-diagnostic explaining why a fix was unavailable (`FAST002`) (#22565) ## Summary This PR fixes #22188 by adding autofix skipped reason as diagnostic info. ## Test Plan snapshots are updated accordingly. --------- Signed-off-by: Bhuminjay <bhuminjaysoni@gmail.com>