With the new year transition, some demo data relative to the current
time are now inconsistent with each others:
- Some payslips starts 2 mount before now.
- the contract starts this year, first January.
This means that
- the contract starts 2023-01-01
- the payslips ends 2022-12-01
Leading to an error
"The following employees have a contract outside of the payslip period"
Note that it looks like there is a also a demo/admin inconsistency
in data but this is out of the scope of this fix.
X-original-commit: ae259f93b6ccaaec17a8d32df6282278e015c395
Part-of: odoo/odoo#108884