message: chore: deprecate /superset/datasources/
diff: @@ -211,6 +211,7 @@ class Superset(BaseSupersetView): # pylint: disable=too-many-public-methods
  @has_access_api
  @event_logger.log_this
  @expose("/datasources/")
  + @deprecated()
  def datasources(self) -> FlaskResponse:
  return self.json_response(
  sorted(
  