publisher: ignore label-fetch on dry-run

Page information for a verbose dry-run is fetching label information
(`metadata.labels`) without it being used to provide feedback on a
dry-run. Adjusting the request to exclude this information.

Signed-off-by: James Knight <james.d.knight@live.com>

sphinxcontrib/confluencebuilder/publisher.py

@@ -351,7 +351,7 @@ def storePage(self, page_name, data, parent_id=None):
             ConfluenceLogger.trace('data', data)
 
         if self.dryrun:
-            _, page = self.getPage(page_name, 'version,ancestors,metadata.labels')
+            _, page = self.getPage(page_name, 'version,ancestors')
 
             if not page:
                 self._dryrun('adding new page ' + page_name)