add missing import for Zope2 patch

product/ERP5Type/patches/Publish.py

@@ -223,6 +223,12 @@ except ImportError: # BBB Zope2
         # getPublisherDeadlineValue, and including publish parameter default
         # values.
         ISkinnable,
+        PubAfterTraversal,
+        PubBeforeAbort,
+        PubBeforeCommit,
+        PubFailure,
+        PubStart,
+        PubSuccess,
         Redirect,
         Retry,
         call_object,