External Version bump for archlinux new version string "2020.06.01"

roles/netbootxyz/defaults/main.yml

@@ -105,8 +105,8 @@ releases:
     mirror: mirror.rackspace.com
     name: Arch Linux
     versions:
-    - code_name: 2020.05.01
-      name: 2020.05.01
+    - code_name: 2020.06.01
+      name: 2020.06.01
   blackarch:
     enabled: true
     menu: linux