chore: Updated the target-postgres transferwise variant to point to t…

…he corresponding subdirectories in `transferwise/pipelinewise`

_data/meltano/loaders/target-postgres/transferwise.yml

@@ -9,7 +9,7 @@ logo_url: /assets/logos/loaders/postgres.png
 maintenance_status: active
 name: target-postgres
 namespace: target_postgres
-pip_url: pipelinewise-target-postgres
+pip_url: git+https://github.com/transferwise/pipelinewise.git#subdirectory=singer-connectors/target-postgres
 quality: silver
 repo: https://github.com/transferwise/pipelinewise-target-postgres
 settings: