bug(google-maps): Zoom not updated on centerChange

### What are you trying to do?

Trying to zoom map after center change:
google-maps.component.html
```

```

google-maps.component.ts
```
export class GoogleMapsComponent {
@Input() center!: google.maps.LatLngLiteral;
zoom = 17;
...

centerChanged() {
console.log('center changed');
this.zoom = 17;
}
```

### What troubleshooting steps have you tried?

Zoom is not changed

### Reproduction

Steps to reproduce:
1. User changes zoom
2. User clicks on marker link that updates center variable.
3. Center is changed, console.log is fired but zoom is not updated

### Environment

- Angular: 12.2.6
- Browser(s): Firefox/Chrome
- Operating System Windows

Comienza reproduciendo los tres pasos de google-maps.component.html con la lógica correspondiente en google-maps.component.ts, confirmando que centerChanged se dispara mientras zoom permanece sin cambios. Sigue el comportamiento del binding de Angular Google Maps y verifica la corrección asegurándote de que una actualización del centro restablezca el zoom a 17.

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