Merge r40726 from 2.9 branch:

  Several zope.app packages were forgotten to be included in the
  first beta due to the now zpkg-based build and release process.

releases/Zope2/DEPENDENCIES.cfg

@@ -53,6 +53,15 @@ zExceptions
 zLOG
 
 zope.app
+zope.app.apidoc
+zope.app.cache
+zope.app.dtmlpage
+zope.app.mail
+zope.app.onlinehelp
+zope.app.rdb
+zope.app.sqlscript
+zope.app.undo
+zope.app.zptpage
 
 # zope.app depends for us on:
 # - ZODB