[Functional][Admin/Job]Cancel deletion of a vacancy from the confirmation modal

[TimofiySharshevskiy]

Priority: Medium

Preconditions

1. Go to 'Вакансії'
2. At least one vacancy exists in the vacancies table (e.g., "test2")

Steps to reproduce

1. Find the vacancy "test2"
2. Click the Delete icon in the "Дії" column
3. In the confirmation modal, click 'Скасувати'

Expected result No changes are made The vacancy "QA Automation Engineer" remains visible in the table No notification is shown

Postconditions The vacancy remains unchanged and available in the system

User story: #836