Add support for automatic (nedb -> Postgres) migration to mx-appservice-irc

roles/matrix-base/defaults/main.yml

@@ -106,6 +106,7 @@ matrix_docker_package_name: docker-ce
 run_postgres_import: true
 run_postgres_upgrade: true
 run_postgres_import_sqlite_db: true
+run_postgres_import_nedb: true
 run_postgres_vacuum: true
 run_synapse_register_user: true
 run_synapse_update_user_password: true