Update dependency @tryghost/content-api to v1.11.3

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
@tryghost/content-api (source)	1.11.2 -> 1.11.3

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Release Notes

TryGhost/SDK

### [`v1.11.3`](https://togithub.com/TryGhost/SDK/compare/@tryghost/content-api@1.11.2...@tryghost/content-api@1.11.3) [Compare Source](https://togithub.com/TryGhost/SDK/compare/@tryghost/content-api@1.11.2...@tryghost/content-api@1.11.3)

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