main/postmarketos-mkinitfs: upgrade to 1.3 (MR 2829)

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

main/postmarketos-mkinitfs/APKBUILD

 # Maintainer: Oliver Smith <ollieparanoid@postmarketos.org>
 # Co-Maintainer: Clayton Craft <clayton@craftyguy.net>
 pkgname=postmarketos-mkinitfs
-pkgver=1.2
+pkgver=1.3
 pkgrel=0
 pkgdesc="Tool to generate initramfs images for postmarketOS"
 url="https://postmarketos.org"
@@ -67,7 +67,7 @@ check() {
 }
 
 sha512sums="
-c78a82e4468ac5e662898337d2f094c2c8596bb3adf931e4731e07424bc04a5c7c72f450401187dca6992babba4794fe835f7e692758f35eaa5bec61856b671f  postmarketos-mkinitfs-1.2.tar.gz
+3495c72ad5a8b1287c4a696a2f9f29b465faafa2768f6336d158aaeb577e352aaa1fc5ddcff35c70de460828094cbfa5e06d4b905565228c5706c151f54a09a8  postmarketos-mkinitfs-1.3.tar.gz
 950ac042f19055979cb53b39be93866c88aba0acd5a49cd768522505991e2bd2851735677e777caa6c8973e006318582ddd975214eccc5c35c2c1d649af6d71e  00-default.modules
 0c6d2c749952ff027f1c435a7a3b2861fb632b81c16b6d69a92b47457da4af8cb80e50168b93f92b316377c8c1f5243029fca22ac49fef0940eb5ad6c3dff6ec  init.sh
 0f631fb08f44b3aaaf44649c164040a6effda2a921c4bfc6e1b55e265ce4395947a8620e669902d18e62f7eabae0e9ef2b88d2d985d6714d27db02eb8b412cc2  init_functions.sh