Changes to List Scheduled Screenings

added the optional property items/items/last_screening/anyOf[subschema #1: ScreeningPreview]/primary_sources_preview/items/ephemeris/anyOf[subschema #1: EphemerisMetadataWithRSO]/covariance_generated to the response with the 200 status

added the optional property items/items/last_screening/anyOf[subschema #1: ScreeningPreview]/secondary_sources_preview/items/ephemeris/anyOf[subschema #1: EphemerisMetadataWithRSO]/covariance_generated to the response with the 200 status

added the required property items/items/last_screening/anyOf[subschema #1: ScreeningPreview]/allow_synthetic_covariance to the response with the 200 status

added the optional property items/items/last_screening/anyOf[subschema #1: ScreeningPreview]/engine_used to the response with the 200 status

added the required property items/items/last_screening/anyOf[subschema #1: ScreeningPreview]/engine to the response with the 200 status

added the optional property items/items/last_screening/anyOf[subschema #1: ScreeningPreview]/primary_rsos_preview/items/auto_maneuvering to the response with the 200 status

added the optional property items/items/last_screening/anyOf[subschema #1: ScreeningPreview]/secondary_rsos_preview/items/auto_maneuvering to the response with the 200 status

added the optional property items/items/last_screening/anyOf[subschema #1: ScreeningPreview]/primary_sources_preview/items/propagation/anyOf[subschema #1: PropagationRead]/enable_discontinuities to the response with the 200 status

added the optional property items/items/last_screening/anyOf[subschema #1: ScreeningPreview]/secondary_sources_preview/items/propagation/anyOf[subschema #1: PropagationRead]/enable_discontinuities to the response with the 200 status