External Version bump for coreos new version string "37.20230401.3.0-stable,38.20230414.2.1-testing,38.20230417.1.0-next"

roles/netbootxyz/defaults/main.yml

@@ -184,7 +184,7 @@ releases:
     versions:
     - code_name: 37.20230401.3.0
       name: stable
-    - code_name: 38.20230414.2.0
+    - code_name: 38.20230414.2.1
       name: testing
     - code_name: 38.20230417.1.0
       name: next