fix: add migration in migrations list

selfprivacy_api/migrations/__init__.py

@@ -18,6 +18,7 @@ from selfprivacy_api.migrations.check_for_system_rebuild_jobs import (
 )
 from selfprivacy_api.migrations.add_roundcube import AddRoundcube
 from selfprivacy_api.migrations.add_monitoring import AddMonitoring
+from selfprivacy_api.migrations.migrate_users_from_json import MigrateUsersFromJson
 
 logger = logging.getLogger(__name__)
 
@@ -26,6 +27,7 @@ migrations = [
     CheckForSystemRebuildJobs(),
     AddMonitoring(),
     AddRoundcube(),
+    MigrateUsersFromJson(),
 ]