chore(deps): update dependency sitemap to v8

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
sitemap	^7.1.1 -> ^8.0.0

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Release Notes

ekalinin/sitemap.js (sitemap)

### [`v8.0.0`](https://togithub.com/ekalinin/sitemap.js/blob/HEAD/CHANGELOG.md#800) [Compare Source](https://togithub.com/ekalinin/sitemap.js/compare/7.1.2...8.0.0) - fix [#​423](https://togithub.com/ekalinin/sitemap.js/issues/423) via [#​424](https://togithub.com/ekalinin/sitemap.js/issues/424) thanks [@​huntharo](https://togithub.com/huntharo) - Propagate errors in SitemapAndIndexStream - drop node 12 support ### [`v7.1.2`](https://togithub.com/ekalinin/sitemap.js/blob/HEAD/CHANGELOG.md#712) [Compare Source](https://togithub.com/ekalinin/sitemap.js/compare/7.1.1...7.1.2) - fix [#​425](https://togithub.com/ekalinin/sitemap.js/issues/425) via [#​426](https://togithub.com/ekalinin/sitemap.js/issues/426) thanks to [@​huntharo](https://togithub.com/huntharo) update streamToPromise to bubble up errors + jsDoc - fix [#​415](https://togithub.com/ekalinin/sitemap.js/issues/415) thanks to [@​mohd-akram](https://togithub.com/mohd-akram) Fix circular dependency breaking Node.js 20.6 - non-breaking updates of dependent packages

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