feat: add incus-image host

- add incus-image host to cobbler/puppet
- add privileged image type for incus

config/globals/profiles.yaml

@@ -81,6 +81,13 @@ docker:
     security.syscalls.intercept.setxattr: true
     linux.kernel_modules: overlay,ip_tables,br_netfilter,nf_nat,xt_conntrack
   devices: []
+incusimages:
+  description: "Special container for privileged access"
+  project: null
+  config:
+    security.privileged: true
+    security.nesting: true
+  devices: []
 
 # cephfs
 shared_media_all: