add Fedora 38

roles/netbootxyz/defaults/main.yml

@@ -232,6 +232,8 @@ releases:
     mirror: http://mirrors.kernel.org
     name: Fedora
     versions:
+    - code_name: 38
+      name: 38
     - code_name: 37
       name: 37
     - code_name: 36