Merge pull request #3623 from fashberg/main

...sql/2023-06-28-133700_add_collection_external_id/down.sql

...mysql/2023-06-28-133700_add_collection_external_id/up.sql

...sql/2023-06-28-133700_add_collection_external_id/down.sql

...resql/2023-06-28-133700_add_collection_external_id/up.sql

...ite/2023-06-28-133700_add_collection_external_id/down.sql

...qlite/2023-06-28-133700_add_collection_external_id/up.sql

src/api/core/organizations.rs

src/db/models/collection.rs

src/db/schemas/mysql/schema.rs

src/db/schemas/postgresql/schema.rs

src/db/schemas/sqlite/schema.rs