mutter: update to 40.4.

srcpkgs/mutter/template

@@ -1,6 +1,6 @@
 # Template file for 'mutter'
 pkgname=mutter
-version=40.3
+version=40.4
 revision=1
 build_helper="gir"
 build_style=meson
@@ -21,7 +21,7 @@ license="GPL-2.0-or-later"
 homepage="https://wiki.gnome.org/Projects/Mutter/"
 changelog="https://gitlab.gnome.org/GNOME/mutter/-/raw/gnome-40/NEWS"
 distfiles="${GNOME_SITE}/${pkgname}/${version%.*}/${pkgname}-${version}.tar.xz"
-checksum=5b15cf8f41da281424bb381ddcd0defc2e17b944b552f77df2fac5e2b34cb005
+checksum=a71c159cd2ac84a677da5fa7acc49483b2627dad772f880f889eb8e4530a1e23
 shlib_provides="libmutter-clutter-8.so libmutter-cogl-8.so
  libmutter-cogl-pango-8.so"
 make_check=no # needs a full graphical session