fix(deps): update dependency sitemap to ^7.1.2 for gatsby-plugin-sitemap

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
sitemap	^7.1.1 -> ^7.1.2

---

Release Notes

ekalinin/sitemap.js (sitemap)

### [`v7.1.2`](https://redirect.github.com/ekalinin/sitemap.js/blob/HEAD/CHANGELOG.md#712) [Compare Source](https://redirect.github.com/ekalinin/sitemap.js/compare/7.1.1...7.1.2) - fix [#​425](https://redirect.github.com/ekalinin/sitemap.js/issues/425) via [#​426](https://redirect.github.com/ekalinin/sitemap.js/issues/426) thanks to [@​huntharo](https://redirect.github.com/huntharo) update streamToPromise to bubble up errors + jsDoc - fix [#​415](https://redirect.github.com/ekalinin/sitemap.js/issues/415) thanks to [@​mohd-akram](https://redirect.github.com/mohd-akram) Fix circular dependency breaking Node.js 20.6 - non-breaking updates of dependent packages

---

Configuration

📅 Schedule: Branch creation - "before 7am on the first day of the month" in timezone GMT, Automerge - At any time (no schedule defined).

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

♻ Rebasing: Whenever PR is behind base branch, 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 was generated by Mend Renovate. View the repository job log.