[FIX] hr_holidays: show delete button on wizard in validate and refuse states

One should be able to delete time off from the calendar view in validate
and refuse states.

task - 2857233

closes odoo/odoo#102938

X-original-commit: d8d4f2d39658c1a2dc24510e9e3f0bf75f590663
Signed-off-by: Kevin Baptiste <kba@odoo.com>

addons/hr_holidays/static/src/views/view_dialog/form_view_dialog.js

@@ -27,7 +27,8 @@ export class TimeOffDialogFormController extends FormController {
     }
 
     get canDelete() {
-        return this.model.root.data.can_cancel || false;
+        const record = this.model.root.data;
+        return record.can_cancel || record.state && !['validate', 'refuse'].includes(record.state);
     }
 }