Bump fedora-coreos-config

Benjamin Gilbert (1):
      overlay.d/20platform-chrony: accept ec2 and gce platform IDs

Dusty Mabe (5):
      manifests/system-configuration: drop kdump ignition.firstboot workaround
      drop fallback hostname handling
      tests: use Fedora 38 container images
      manifests: move systemd-repart to shared manifest
      denylist: deny reprovision tests on ppc64le/rawhide