[BUG] DataFrame.corr() is not called correctly

02_end_to_end_machine_learning_project.ipynb contains a bug in calls to DataFrame.corr(), eg the line

```
corr_matrix = housing.corr()
```

Should be

```
corr_matrix = housing.corr(numeric_only=True)
```

Running it on colab gives a warning, but it errors (without a useful error message) on a newer version of Pandas.

Open 02_end_to_end_machine_learning_project.ipynb and find the housing DataFrame.corr() calls, including the shown corr_matrix assignment. Update the affected calls to pass numeric_only=True, then run the notebook in Colab or with a newer Pandas version and confirm the warning/error is gone.

Written by the indexing model from the issue text.