fix(deps): update dependency gatsby to v4.25.5

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
gatsby (source, changelog)	4.25.4 -> 4.25.5

---

Release Notes

gatsbyjs/gatsby

### [`v4.25.5`](https://togithub.com/gatsbyjs/gatsby/compare/gatsby@4.25.4...gatsby@4.25.5) [Compare Source](https://togithub.com/gatsbyjs/gatsby/compare/gatsby@4.25.4...gatsby@4.25.5)

---

Configuration

📅 Schedule: Branch creation - "after 9pm on sunday" (UTC), Automerge - At any time (no schedule defined).

🚦 Automerge: Enabled.

♻ 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.