FrameLocalsProxy does not support `.update(iterable)`

# Bug report

### Bug description:

```python
import inspect
def main():
    ls = inspect.currentframe().f_locals
    ls.update([("a", 0)])
main()
```

The above works in Python 3.12 but fails in Python 3.13 with:
```
TypeError: update() argument must be dict or another FrameLocalsProxy
```

### CPython versions tested on:

3.13

### Operating systems tested on:

Linux