mkosi: update arch commit reference

* 1d577a6268 refresh the keys
* 12383ba712 make libarchive a regular optional dependency...
* f51d5e04bf ignore rc releases in nvchecker
* 0b096a2baa add nvchecker
* 5f0ced863c upgpkg: 256.2-1: new upstream release

(cherry picked from commit 4ecd6c3)

Author: DaanDeMeyer

mkosi.images/build/mkosi.conf.d/arch/mkosi.conf

@@ -7,7 +7,7 @@ Distribution=arch
 Environment=
         GIT_URL=https://gitlab.archlinux.org/archlinux/packaging/packages/systemd.git
         GIT_BRANCH=main
-        GIT_COMMIT=d74b24c7c6077740c35a876445febe6d26bf013c
+        GIT_COMMIT=1d577a62688419ee4af01b847e55845cd9780301
         PKG_SUBDIR=arch
 
 Packages=