fix: include services-openrc in calamares build, add back to CI

- Remove services-openrc from skip list so the module is compiled in
  (needed by settings.conf which calls services-openrc for OpenRC systems)
- Add calamares back to packages.yaml: needed as dependency of
  calamares-branding-antergos-next, and not available in official Arch repos
  (CI uses archlinux:latest container)

packages.yaml

@@ -1,4 +1,5 @@
 packages:
+  - calamares
   - antergos-wallpapers
   - yay
   - downgrade

packages/calamares/PKGBUILD

@@ -41,7 +41,6 @@ build() {
     initramfscfg
     interactiveterminal
     packagechooser
-    services-openrc
   )
 
   local _pkgsrc_dir="$srcdir/$_pkgname-$pkgver"