[IMP] stock: pass tests without demo data for file test_stock_flow.
[IMP] stock: pass tests without demo data for file test_stock_flow.

pass all test cases without any demo data.
If a user has not installed any demo data, then also test cases must not be break.

task-2024202
closes : https://github.com/odoo/odoo/pull/34258
ygol/odoo,ygol/odoo,ygol/odoo,ygol/odoo,ygol/odoo,ygol/odoo,ygol/odoo