## Description
### Issue:
Non-animated webp / gif files were using `metadata.pages` to calculate
it's resized heights for `imageSizes` or `cropping`.
### Fix:
It should only use this to calculate it's height if the file's
`metadata` contains `metadata.pages`. Non-animated webps and gifs would
not have this.
- [x] I have read and understand the
[CONTRIBUTING.md](https://github.com/payloadcms/payload/blob/main/CONTRIBUTING.md)
document in this repository.
## Type of change
- [x] Bug fix (non-breaking change which fixes an issue)
## Checklist:
- [x] Existing test suite passes locally with my changes
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