Update dependency @tryghost/server to v0.1.39 - autoclosed

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
@tryghost/server (source)	0.1.38 -> 0.1.39

---

Release Notes

TryGhost/framework (@​tryghost/server)

### [`v0.1.39`](https://togithub.com/TryGhost/framework/compare/@tryghost/server@0.1.38...@tryghost/server@0.1.39) [Compare Source](https://togithub.com/TryGhost/framework/compare/@tryghost/server@0.1.38...@tryghost/server@0.1.39)

---

Configuration

📅 Schedule: Branch creation - "every weekday" (UTC), Automerge - At any time (no schedule defined).

🚦 Automerge: Disabled by config. Please merge this manually once you are satisfied.

♻ Rebasing: Whenever PR becomes conflicted, or you tick the rebase/retry checkbox.

🔕 Ignore: Close this PR and you won't be reminded about this update again.

---

• [ ] If you want to rebase/retry this PR, check this box

---

This PR has been generated by Mend Renovate. View repository job log here.