Main target is now Debian 13 instead of Ubuntu 24.04

example/tofu/infra.auto.tfvars

@@ -7,15 +7,21 @@ vms = {
   },
   waf2 = {
     cpus = 4
+    image = "22.04"
   },
   waf3 = {
-    cpus = 4
+    cpus  = 4
+    image = "24.04"
   },
   bdd1 = {},
   nfs1 = {},
   www1 = {},
   www2 = {},
   www3 = {},
-  www4 = {},
-  www5 = {},
+  www4 = {
+    image = "22.04"
+  },
+  www5 = {
+    image = "24.04"
+  },
 }