Using memCacheWidth/height along with imageBuilder has no effect.

## 🐛 Bug Report

When adding a `memCacheWidth` or `memCacheHeight`, the cached version of the image doesn't get passed to the `imageBuilder`, so the image stays its original size.

When using `debugInvertOversizedImages = true;` the image is clearly still too large for its container. Removing the `imageBuilder` fixes this error.

### Expected behavior
Image rendered through the imageBuilder should be lower resolution or smaller size.

### Reproduction steps
Run the following with an image:
```
CachedNetworkImage(
imageUrl: imageUrl.toString(),
memCacheWidth: 50,
imageBuilder: (context, imageProvider) {
return Container(
width: double.infinity,
height: 150,
decoration: BoxDecoration(
image: DecorationImage(
image: imageProvider,
fit: BoxFit.cover,
),
),
);
},
),

```
### Configuration
As above.

**Version:** 3.2.0

**Platform:**
- [ ] :iphone: iOS
- [X] :robot: Android