Pramen-Py MetastoreReader cannot read tables in Spark catalog

[jirifilip]

Describe the bug

If you define a table in metastore with table option instead of path option

{
    name = some_table
    format = "delta"
    table = "some_db.some_table" # <---- pramen-py cannot read this
 }

Pramen-py attemps to read the table with "path" option (and path is empty) and throws the following error

23/03/13 08:08:24 INFO Pramen-Py(err): pyspark.sql.utils.IllegalArgumentException: Path must be absolute: some_db.some_table

Failing test case

def test_metastore_reader_with_delta_table_in_catalog(spark, get_data_stub):
    metastore_table = MetastoreTable(
        name="test_table",
        format=TableFormat.delta,
        table="test_table",
        info_date_settings=InfoDateSettings(column="info_date"),
    )
    writer = MetastoreWriter(
        spark=spark,
        tables=[metastore_table],
        info_date=d(2022, 3, 23),
    )
    writer.write("test_table", get_data_stub)

    metastore_reader = MetastoreReader(spark=spark, tables=[metastore_table])
    dataframe = metastore_reader.get_table("test_table")

    assert set(dataframe.columns) == {"A", "B", "C", "D", "info_date"}

Expected behavior

Pramen-py reads the table using table option.