chore: 🤖 update dependency next-sitemap to v2.5.28

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
next-sitemap	2.5.27 -> 2.5.28

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Release Notes

iamvishnusankar/next-sitemap

### [`v2.5.28`](https://togithub.com/iamvishnusankar/next-sitemap/releases/tag/v2.5.28) [Compare Source](https://togithub.com/iamvishnusankar/next-sitemap/compare/v2.5.27...v2.5.28) #### Changes: - [`a8d541a`](https://togithub.com/iamvishnusankar/next-sitemap/commit/a8d541a8e222640784d30a3f6ac63d9861895b86) Merge pull request [#​392](https://togithub.com/iamvishnusankar/next-sitemap/issues/392) from iamvishnusankar/next-sitemap-funding - [`9ab8d00`](https://togithub.com/iamvishnusankar/next-sitemap/commit/9ab8d0005f2e9a162367f0a67aed80b8e63d2ec6) Created FUNDING.yml This list of changes was [auto generated](https://dev.azure.com/iamvishnusankar/Public/\_build/results?buildId=4362\&view=logs).

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Configuration

📅 Schedule: "every weekend" in timezone Asia/Jerusalem.

🚦 Automerge: Enabled.

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