main/postmarketos-ui-phosh: set pmOS wallpaper (MR 4527)

[ci:skip-build] already built successfully in CI

main/postmarketos-ui-phosh/APKBUILD

@@ -2,7 +2,7 @@
 # Maintainer: Newbyte <newbyte@postmarketos.org>
 pkgname=postmarketos-ui-phosh
 pkgver=22.3
-pkgrel=1
+pkgrel=2
 pkgdesc="(Wayland) Mobile UI initially developed for the Librem 5"
 url="https://phosh.mobi"
 arch="noarch !armhf"
@@ -18,6 +18,7 @@ depends="
 	gnome-keyring
 	phosh
 	postmarketos-base-ui-gnome
+	postmarketos-base-ui-gnome-wallpaper-pmos
 	postmarketos-base-ui-qt-tweaks
 	postmarketos-base-ui-qt-wayland
 	tinydm