editors/emacs: Update to 30.1

Release announcement: https://lists.gnu.org/archive/html/info-gnu-emacs/2025-02/msg00009.html
Submitted by: HIROSE yuuji <yuuji@gentei.org> (updated canna patch)
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D48432

(cherry picked from commit e0799128b93afb92c65fd11650ce778ab62a1969)