Interrapt G31

Description:
When a user wants to create an attendee who has less than 5 or more than 25 characters in the 'Phone' filed , it gets created successfully.

Environment:
Google Chrome Version 125.0.6422.142 (Official Build) (64-bit)
Windows 10 Pro

Platform:
Samsung Galaxy S8+
Android 9.0

Steps to reproduce:
1.Navigate to Interrupt web page.
2.Log in with valid credentials.
3.Click on the menu item.
4.Click on the attendees page.
5.Click on the ,,Create" button.
6.Fill the 'Name' field with valid data.
7.Fill the 'Surname' field with valid data.
8.Fill the 'Phone' field with invalid data.

Expected result:
When creating an attendee there should be a defect and an attendee should not be created.

Actual result:
Attendee is created when 'Phone' field is filled with invalid data.