[affiliations] While searching for ROR children, include the inactive ones

[annelhote]

The API request should be like this one :
https://api.ror.org/v2/organizations?query.advanced=relationships.id:%22https\://ror.org/00pg6eq24%22+AND+relationships.type:parent+AND+status:inactive

See ror-community/ror-roadmap#306 (comment)