Fix backward compatibility for strict mode config between 1.13 and 1.14

[joein]

qdrant-client 1.13.2 cannot deserialize the collection info

qdrant_client.http.exceptions.ResponseHandlingException: 2 validation errors for ParsingModel[InlineResponse2005] (for parse_as_type)
obj.result.config.strict_mode_config.max_points_count
  Extra inputs are not permitted [type=extra_forbidden, input_value=1000000, input_type=int]
    For further information visit https://errors.pydantic.dev/2.8/v/extra_forbidden
obj.result.config.strict_mode_config.sparse_config
  Extra inputs are not permitted [type=extra_forbidden, input_value={'0-sparse': {'max_length': 999}}, input_type=dict]
    For further information visit https://errors.pydantic.dev/2.8/v/extra_forbidden

[agourlay]

In progress in #916 and qdrant/qdrant#6114