This update introduces demo data for the Swiss HR Payroll Localization, enabling easier testing and demonstrations of the payroll functionality. The data includes a sample company, employee, and a year's worth of payslips, providing a realistic scenario for understanding the Swiss payroll process. This supports internal testing and showcases the localization's capabilities.

This commit adds demo data for the Swiss HR Payroll Localization to facilitate testing and demonstration of Swiss payroll.

The demo data includes the company setup, employee with relevant details, and 1 year of payslip history for that employee.

Task: 5870506

Forward-Port-Of: odoo/enterprise#105872