Delta source_format key error

[JoeBarcus]

When using the delta option for the bronze source_format the read_dlt_delta method will fail with a key error:

.{bronze_dataflow_spec.sourceDetails["table"]}
KeyError: 'table'

Switching the key to source_table worked for me locally.

[ravi-databricks]

@JoeBarcus created PR please check.

[ravi-databricks]

fixed in v0.0.8