[MAINTENANCE] Add integration tests for v2 /bulkupdate and organization create/update

[lizkrznarich]

Service/repository ror-api

Describe the current state/issue In v2, routes were added to support creating and updating ROR records via the API as well as creating/updating multiple records by uploading a formatted CSV. Unit tests were added for these routes, but integration tests were not.

Describe the desired state/solution Add integration tests for individual record create and update functionality, as well as bulk update.

Additional notes Views

• create https://github.com/ror-community/ror-api/blob/master/rorapi/common/views.py#L116
• update https://github.com/ror-community/ror-api/blob/master/rorapi/common/views.py#L135
• bulkupdate https://github.com/ror-community/ror-api/blob/master/rorapi/common/views.py#L233

Docs

• create https://github.com/ror-community/ror-api/blob/master/rorapi/common/views.py#L233
• update https://github.com/ror-community/ror-api/tree/master?tab=readme-ov-file#update-existing-record-file-v2-only
• bulkupdate https://github.com/ror-community/ror-api/tree/master?tab=readme-ov-file#createupdate-multiple-record-files-from-a-csv
• running tests https://github.com/ror-community/ror-api/tree/master?tab=readme-ov-file#start-ror-api-locally