trace/io_uring: fix io_uring_local_work_run ctx documentation

The comment for the tracepoint io_uring_local_work_run refers to a field
"tctx" and a type "io_uring_ctx", neither of which exist. "tctx" looks
to mean "ctx" and "io_uring_ctx" should be "io_ring_ctx".

Signed-off-by: Caleb Sander Mateos <csander@purestorage.com>
Link: https://lore.kernel.org/r/20250522150451.2385652-1-csander@purestorage.com


Signed-off-by: Jens Axboe <axboe@kernel.dk>