[3.10] gh-141707: Skip TarInfo DIRTYPE normalization during GNU long name handling (#145816)

gh-141707: Skip TarInfo DIRTYPE normalization during GNU long name handling
(cherry picked from commit 42d754e34c06e57ad6b8e7f92f32af679912d8ab)

Co-authored-by: Seth Michael Larson <seth@python.org>
Co-authored-by: Eashwar Ranganathan <eashwar@eashwar.com>
4 files changed