Added supershipit to botmeta sanity test (#50219)

.github/BOTMETA.yml

@@ -31,6 +31,7 @@
 #                     https://github.com/ansible/ansible/labels?q=support for full list
 #           labels - list of GitHub labels to apply. Path components of 'file' parent key
 #                    which are valid GitHub labels are automatically added.
+#           supershipit - supershipiteers can turn a shipit into a supershipit
 #
 
 automerge: True

test/sanity/code-smell/botmeta.py

@@ -37,6 +37,7 @@ def main():
             'labels': Any(list_string_types, *string_types),
             'maintainers': Any(list_string_types, *string_types),
             'notified': Any(list_string_types, *string_types),
+            'supershipit': Any(list_string_types, *string_types),
             'support': Any("core", "network", "community"),
         })
     )