Fix v2 cypher setup

return generator of container instead of nested generator

Author: FlorentinD

graphdatascience/tests/integrationV2/procedure_surface/cypher/conftest.py

@@ -17,7 +17,7 @@
 def gds_plugin_container(
     logs_dir: Path, tmp_path_factory: pytest.TempPathFactory
 ) -> Generator[Neo4jContainer, None, None]:
-    return start_gds_plugin_database(logs_dir, tmp_path_factory)
+    yield from start_gds_plugin_database(logs_dir, tmp_path_factory)
 
 
 @pytest.fixture(scope="package")