[3.13] gh-122332: Fix missing `NULL` check in `asyncio.Task.get_coro` (GH-122338) (#122344)

gh-122332: Fix missing `NULL` check in `asyncio.Task.get_coro` (GH-122338)
(cherry picked from commit c08696286f52d286674f264eecf7b33a335a890b)

Co-authored-by: Peter Bierma <zintensitydev@gmail.com>
3 files changed