[3.12] gh-82378: Document the difference between sys.tracebacklimit and the limit arguments (GH-123286) (#123326)

gh-82378: Document the difference between sys.tracebacklimit and the limit arguments (GH-123286)
(cherry picked from commit 70bfef52b5734d6cd81c5e8ca9eaf85658916b04)

Co-authored-by: CF Bolz-Tereick <cfbolz@gmx.de>