Update antora-playbook.yml

Author: Ryan Baxter

docs/antora-playbook.yml

@@ -1,10 +1,11 @@
 antora:
   extensions:
     - '@springio/antora-extensions/partial-build-extension'
+    # atlas-extension must be before latest-version-extension so latest versions are applied to imported versions
+    - '@antora/atlas-extension'
     - require: '@springio/antora-extensions/latest-version-extension'
     - require: '@springio/antora-extensions/inject-collector-cache-config-extension'
     - '@antora/collector-extension'
-    - '@antora/atlas-extension'
     - require: '@springio/antora-extensions/root-component-extension'
       root_component_name: 'cloud-config'
     - '@springio/antora-extensions/static-page-extension'