fix(deps): update dependency @tryghost/image-transform to v1.3.0

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
@tryghost/image-transform (source)	1.2.11 -> 1.3.0

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Release Notes

TryGhost/SDK (@​tryghost/image-transform)

### [`v1.3.0`](https://togithub.com/TryGhost/SDK/compare/@tryghost/image-transform@1.2.11...@tryghost/image-transform@1.3.0) [Compare Source](https://togithub.com/TryGhost/SDK/compare/@tryghost/image-transform@1.2.11...@tryghost/image-transform@1.3.0)

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