[FIX] project_timesheet_holidays: Fix leave validation rights issues

Currently, when a leave is validated, an `account.analytic.line`
is automatically created. However, the approver may not have
the access rights to do so.

This commit fixes the issues by using sudo to generate the line.

addons/project_timesheet_holidays/models/hr_holidays.py

@@ -73,7 +73,7 @@ class Holidays(models.Model):
                 fields.Datetime.from_string(holiday.date_to),
             )
             for index, (day_date, work_hours_count) in enumerate(work_hours_data):
-                self.env['account.analytic.line'].create({
+                self.env['account.analytic.line'].sudo().create({
                     'name': "%s (%s/%s)" % (holiday.name or '', index + 1, len(work_hours_data)),
                     'project_id': holiday_project.id,
                     'task_id': holiday_task.id,