pyarrow.lib.arrowinvalid: cannot mix list and non-list, non-null values with map function
### Describe the bug

Encounter pyarrow.lib.arrowinvalid error with map function in some example when loading the dataset

### Steps to reproduce the bug

```
from datasets import load_dataset
from PIL import Image, PngImagePlugin

dataset = load_dataset("leonardPKU/GEOQA_R1V_Train_8K")
system_prompt="You are a helpful AI Assistant"
def make_conversation(example):
    prompt = []

    prompt.append({"role": "system", "content": system_prompt})
    prompt.append(
            {
                "role": "user", 
                "content": [
                        {"type": "image"},
                        {"type": "text", "text": example["problem"]},
                        ]
            }
        )
    return {"prompt": prompt}

def check_data_types(example):
    for key, value in example.items():
        if key == 'image':
            if not isinstance(value, PngImagePlugin.PngImageFile):
                print(value)
        if key == "problem" or key == "solution":
            if not isinstance(value, str):
                print(value)

    return example

dataset = dataset.map(check_data_types)
dataset = dataset.map(make_conversation)
```

### Expected behavior

Successfully process the dataset with map

### Environment info

datasets==3.3.1