[API][Admin][News] Verify that the news cannot be created with special symbols ($,@,%,#) in 'url' field using POST method

[mozhaieva]

Priority: High

1. Postman is opened
2. User is authorized
3. The POST method is chosen
4. All required data has been added to the body: { "id": 0, "title": "string", "text": "string", "imageId": 0, "url": "string", "creationDate": "2024-09-11T08:57:56.061Z" }

Steps to reproduce

1. Input a valid endpoint https://stageback.streetcode.com.ua/api/News/Create
2. Input value in the 'url' field with special symbols (e.g. $,@,%,#, &,^)
3. Click the 'Send' button

Expected result The news isn't created - status code '400 Bad Request ' Error message in response body appears: "Url Is Invalid"

User story: #835