[FIX] hr_holidays: import used function

Oversight of previous forward-port

addons/hr_holidays/models/hr_leave.py

@@ -9,7 +9,7 @@ from datetime import timedelta
 
 from odoo import api, fields, models
 from odoo.exceptions import AccessError, UserError, ValidationError
-from odoo.tools import float_compare, float_round
+from odoo.tools import float_compare
 from odoo.tools.translate import _
 
 from odoo.addons.resource.models.resource import HOURS_PER_DAY

addons/hr_holidays/models/hr_leave_type.py

@@ -7,6 +7,7 @@ import logging
 
 from odoo import api, fields, models
 from odoo.exceptions import ValidationError
+from odoo.tools import float_round
 from odoo.tools.translate import _
 
 _logger = logging.getLogger(__name__)