[3.14] gh-134155: fix AttributeError in email._header_value_parser.get_address (GH-134194) (#135191)

gh-134155: fix AttributeError in email._header_value_parser.get_address (GH-134194)

Append the defect to defects instead of to the parse tree.
(cherry picked from commit d9cad074d52fe31327429fd81e4d2eeea3dbe35b)

Co-authored-by: Sergey Miryanov <sergey.miryanov@gmail.com>
Co-authored-by: Bénédikt Tran <10796600+picnixz@users.noreply.github.com>
Co-authored-by: Hugo van Kemenade <1324225+hugovk@users.noreply.github.com>