temp/mutter-mobile: force update of libmutter_api_version (MR 4119)

The forked version includes some new API, but the maintainer wants to
have things as-close-as-possible to upstream. Since APK mostly keeps track
of libraries versions, having the same API version as upstream (there's no
stable ABI for mutter), makes it possible for APK to confuse with non-mobile
mutter. By having an unrealistic API version, we make sure this does not happen
to us.

Fixes #2127

temp/mutter-mobile/APKBUILD

@@ -2,7 +2,7 @@
 
 pkgname=mutter-mobile
 pkgver=44_git20230405
-pkgrel=0
+pkgrel=1
 pkgdesc="clutter-based window manager and compositor"
 url="https://wiki.gnome.org/Projects/Mutter/"
 # ricsv64: doesn't build currently:
@@ -72,6 +72,12 @@ source="mutter-$_commit.tar.gz::https://gitlab.gnome.org/verdre/mutter/-/archive
 	"
 builddir="$srcdir/mutter-$_commit"
 
+prepare() {
+	default_prepare
+
+	sed -i "s/libmutter_api_version = '.*'/libmutter_api_version = '99'/g" meson.build
+}
+
 build() {
 	abuild-meson \
 		-Degl_device=true \