[3.12] gh-121913: Use str(exc) instead of exc.strerror in `asyncio.base_events` (GH-122269) (#122279)

gh-121913: Use str(exc) instead of exc.strerror in `asyncio.base_events` (GH-122269)
(cherry picked from commit 070f1e2e5b9b31ee3e7a1af2e30d7e3a66040b17)

Co-authored-by: AN Long <aisk@users.noreply.github.com>