[FIX] hr_holidays: Avoid too long number in header dashboard
[FIX] hr_holidays: Avoid too long number in header dashboard

In time off dashbord, due to python precision computation we can
have amount of days like 9.9999998. This commit make a rounding
after 2 digits and doesn't add new 0 at the end.
For example:
3 -> 3
3.1 -> 3.1
3.14 -> 3.14
3.141 -> 3.14

closes odoo/odoo#37182

Signed-off-by: Yannick Tivisse (yti) <200a91eb0e5cc4726d6a3430713b580138f34298@odoo.com>

ygol/odoo,ygol/odoo,ygol/odoo,ygol/odoo,ygol/odoo,ygol/odoo,ygol/odoo