[3.14] gh-134179: Use sys._clear_internal_caches() at test_cmd_line (GH-134180) (#144631)

gh-134179: Use sys._clear_internal_caches() at test_cmd_line (GH-134180)

Use sys._clear_internal_caches() instead of deprecated sys._clear_type_cache() at test_cmd_line.
(cherry picked from commit dd2da42ea479c32a4260463b47e1b58877d07bdc)

Co-authored-by: alexey semenyuk <alexsemenyuk88@gmail.com>