Errors in the notebook of chapter1 part 3

As I was following this course, I encounter some error messages in the notebook :

## 1. Name entity recognition :
Original code :
```py
from transformers import pipeline

ner = pipeline("ner", grouped_entities=True)
ner("My name is Sylvain and I work at Hugging Face in Brooklyn.")
```
This leads to the following error : ```TypeError: TokenClassificationPipeline._sanitize_parameters() got an unexpected keyword argument 'grouped_entities'```

Suggested correction :
```py
from transformers import pipeline

ner = pipeline("ner", aggregation_strategy='simple')
ner("My name is Sylvain and I work at Hugging Face in Brooklyn.")
```

## 2. Summarization
This appears to be deprecated in transformers V5.
Either this example is to be removed, or done using text-generation, as recommended in the V5 migration guide.

## 3. Translation
This appears to be deprecated in transformers V5.
Either this example is to be removed, or done using text-generation, as recommended in the V5 migration guide.