[3.9] gh-101180: Fix a bug where iso2022_jp_3 and iso2022_jp_2004 codecs read out of bounds (gh-111695)#111780

ambv merged 1 commit intopython:3.9python/cpython:3.9from

ambv:backport-c8faa35-3.9ambv/cpython:backport-c8faa35-3.9Copy head branch name to clipboard