editors/emacs-devel: Update to 2024-06-01 snapshot, 9a2088bdd9

Commit log:     https://github.com/emacs-mirror/emacs/compare/c85294a6132...9a2088bdd9
Event:		BSDCan 2024
Sponsored by:	The FreeBSD Foundation
Reviewed by:	ashish (in person)
Differential Revision:	https://reviews.freebsd.org/D45446