unable to load extra field for ingestion from config file

[zhengwj533]

Describe the bug

In the toml configuration file, if additional properties are added to ingestion, the program is unable to read those properties.

Additional context

From the code py/core/main/assembly/factory.py, it appears that the initialization of IngestionConfig is incorrect with respect to extra_fields. For example, may be modified as follows:

- r2r_ingestion_config = R2RIngestionConfig(
+ r2r_ingestion_config = R2RIngestionConfig.create(