[P1BIGROCKS-242] Get license for all helm charts as well and add to 'licensing_expectations'
[P1BIGROCKS-242](https://jira.il2.dso.mil/browse/P1BIGROCKS-2428)
https://repo1.dso.mil/platform-one/big-bang/bigbang/-/blob/license_expectations/docs/understanding_bigbang/licensing_expectations.md
epic