tests: use stock pytest_postgresql factory function
instead of (soon-to-be-deprecated) swh-core's postgresql_fact one.
Depends on !150 (closed). Closes #4289 (closed).
Migrated from D7930 (view on Phabricator)
instead of (soon-to-be-deprecated) swh-core's postgresql_fact one.
Depends on !150 (closed). Closes #4289 (closed).
Migrated from D7930 (view on Phabricator)