change ftp.archlinux.org to sources.archlinux.org

PKGBUILD

@@ -12,7 +12,7 @@ license=('GPL3')
 depends=('mesa' 'sdl_image' 'sdl_mixer')
 makedepends=('glu')
 source=(ftp://ftp.gnu.org/gnu/$pkgname/$pkgname-$pkgver.tar.gz
-        ftp://ftp.archlinux.org/other/community/$pkgname/$pkgname.png
+        https://sources.archlinux.org/other/community/$pkgname/$pkgname.png
         $pkgname.desktop)
 md5sums=('a8bdd3402a9d12faa5835a2c41ef7b3e'
          'aff6af66e632095aa3154e952571f9b5'