retention duration support for ODCS in datacontract CLI

[elcagupa]

ODCS supports slaproperties -

• property: retention
  value: 3
  unit: y

datacontract CLI supports
retention:
description: Data is retained for one year
period: P1Y
unlimited: false

datacontract cli throws an error when ODCS contract is used. The value in ODCS is integer but datacontract cli expects a string.

Traceback (most recent call last):
File "/usr/local/lib/python3.11/site-packages/datacontract/data_contract.py", line 106, in test
execute_data_contract_test(data_contract, run, self._server, self._spark, self._duckdb_connection)
File "/usr/local/lib/python3.11/site-packages/datacontract/engines/data_contract_test.py", line 56, in execute_data_contract_test
run.checks.extend(create_checks(data_contract, server))
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/local/lib/python3.11/site-packages/datacontract/engines/data_contract_checks.py", line 61, in create_checks
checks.extend(to_servicelevel_checks(data_contract))
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/local/lib/python3.11/site-packages/datacontract/engines/data_contract_checks.py", line 948, in to_servicelevel_checks
check = to_servicelevel_retention_check(data_contract, sla)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/local/lib/python3.11/site-packages/datacontract/engines/data_contract_checks.py", line 1055, in to_servicelevel_retention_check
seconds = _parse_iso8601_to_seconds(retention_period)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/local/lib/python3.11/site-packages/datacontract/engines/data_contract_checks.py", line 1091, in _parse_iso8601_to_seconds
duration = duration.upper()
^^^^^^^^^^^^^^
AttributeError: 'int' object has no attribute 'upper'
ERROR:root:'int' object has no attribute 'upper'