io_uring: mark io_run_local_work static

io_run_local_work is enclosed in io_uring.c, we don't need to export it.

Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/b477fb81f5e77044f724a06fe245d5c078659364.1673274244.git.asml.silence@gmail.com


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