Revert "Disable systemd-ssh-generator"

This reverts commit a5593be.
Upstream selinux-policy was fixed in fedora-selinux/selinux-policy#2326
and release in selinux-policy-41.15-1.fc41

https://bodhi.fedoraproject.org/updates/FEDORA-2024-1597066f01

image.yaml

@@ -2,8 +2,3 @@
 # similarly to manifest.yaml. Unlike image-base.yaml, which is shared by all
 # streams.
 include: image-base.yaml
-
-extra-kargs:
-    # Disable systemd-ssh-generator until selinux-policy get fixed
-    # see https://github.com/coreos/fedora-coreos-tracker/issues/1786
-    - systemd.ssh_auto=no