Update dependency @tryghost/admin-api to v1.13.0

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
@tryghost/admin-api	1.12.0 -> 1.13.0

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Release Notes

TryGhost/SDK

### [`v1.13.0`](https://togithub.com/TryGhost/SDK/compare/@tryghost/admin-api@1.12.2...@tryghost/admin-api@1.13.0) [Compare Source](https://togithub.com/TryGhost/SDK/compare/@tryghost/admin-api@1.12.2...@tryghost/admin-api@1.13.0) ### [`v1.12.2`](https://togithub.com/TryGhost/SDK/compare/@tryghost/admin-api@1.12.1...@tryghost/admin-api@1.12.2) [Compare Source](https://togithub.com/TryGhost/SDK/compare/@tryghost/admin-api@1.12.1...@tryghost/admin-api@1.12.2) ### [`v1.12.1`](https://togithub.com/TryGhost/SDK/compare/@tryghost/admin-api@1.12.0...@tryghost/admin-api@1.12.1) [Compare Source](https://togithub.com/TryGhost/SDK/compare/@tryghost/admin-api@1.12.0...@tryghost/admin-api@1.12.1)

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Configuration

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