Rename couse material title to existing title

[BeatBioInfo]

Steps to reproduce
Create a collection on Postman
Click on the “add request” button
Use the POST method to call a request http://qa-school-test-api.quantori.academy/api/v1/session
Enter the following “string” in the “Body” in the following order

{
“username”: “admin”,
“password”: “1234”
}

Press the “send” button to generate an “accessToken”.
Click “Add request” to 'rename course material title' in a course
Use the PATCH method to call a request {{Host}}api/v1/courses/3093/materials/200
Enter the body

{
        "id": 166,
        "title": "My ever first course on постман-1",
        "data": "Kindly provide the right information about sser postman щщщцыры",
        "order": 1
}

Then send the request.

Actual behavior
Status code: 200; Ok
Body Request:

{
    "id": 166,
    "title": "My ever first course on постман-1",
    "data": "Kindly provide the right information about sser postman щщщцыры",
    "order": 1,
    "courseId": 3093
}

Succesful PATCH request

Expected behavior
Status code: 400 Bad request
Body response:

{
    "id": 166,
    "title": "My ever first course on постман-1",
    "data": "Kindly provide the right information about sser postman щщщцыры",
    "order": 1,
    "courseId": 3093
}

Screenshots
If applicable, add screenshots to help explain your problem.

[viraxslot]

Related to #63