External Version bump for coreos new version string "39.20240309.3.0-stable,39.20240322.2.0-testing,40.20240331.1.0-next"

roles/netbootxyz/defaults/main.yml

@@ -195,7 +195,7 @@ releases:
       name: stable
     - code_name: 39.20240322.2.0
       name: testing
-    - code_name: 40.20240322.1.0
+    - code_name: 40.20240331.1.0
       name: next
   debian:
     archive_mirror: http://archive.debian.org