"module 'flask.json' has no attribute 'JSONDecodeError'"

Below line:
https://github.com/arg-tech/default_turninator/blob/5b4546aa8df3531698f95cbeca393ec98b99d565/src/turninator.py#L5

Throws an error:
```
"module 'flask.json' has no attribute 'JSONDecodeError'"
```

Modules version in docker container after running `pip3 freeze`:
```
Werkzeug==3.1.3
Flask==3.1.2
flask-cors==6.0.1
Flask-Uploads==0.2.1
```