libappindicator-devel: add missing dependencies

fixes #14684

srcpkgs/libappindicator/template

@@ -1,7 +1,7 @@
 # Template file for 'libappindicator'
 pkgname=libappindicator
 version=12.10.0
-revision=2
+revision=3
 build_style=gnu-configure
 build_helper="gir"
 configure_args="--with-gtk=3"
@@ -29,7 +29,7 @@ pre_configure() {
 
 libappindicator-devel_package() {
 	short_desc+=" - development files"
-	depends="${sourcepkg}>=${version}_${revision}"
+	depends="${sourcepkg}>=${version}_${revision} gtk+3-devel libdbusmenu-glib-devel"
 	pkg_install() {
 		vmove usr/include
 		vmove usr/lib/pkgconfig