[3.13] gh-101291: Add versionadded directives for PyUnstable_Long_* (GH-125384) (#125407)

gh-101291: Add versionadded directives for PyUnstable_Long_* (GH-125384)
(cherry picked from commit c6d7b644c2425b397cfb641f336bea70eb8a329a)

Co-authored-by: Sergey B Kirpichev <skirpichev@gmail.com>
1 file changed