main/postmarketos-ui-sxmo-de-dwm: upgrade to 1.9.0 (MR 3101)

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

main/postmarketos-ui-sxmo-de-dwm/APKBUILD

 # Reference: https://postmarketos.org/uipkg
 # Maintainer: Miles Alan <m@milesalan.com>
 pkgname=postmarketos-ui-sxmo-de-dwm
-pkgver=1.8.2
+pkgver=1.9.0
 pkgrel=0
 pkgdesc="Simple Mobile: Mobile environment based on SXMO and running on dwm"
 url="http://sr.ht/~mil/Sxmo"