[3.12] gh-125331: Allow the parser to activate future imports on the fly (GH-125482) (#131063)

gh-125331: Allow the parser to activate future imports on the fly (GH-125482)
(cherry picked from commit 3bd3e09588bfde7edba78c55794a0e28e2d21ea5)

Co-authored-by: Pablo Galindo Salgado <Pablogsal@gmail.com>