Bump @astrojs/vercel from 8.1.4 to 8.1.5 in the deployment group (#2720)

Bumps the deployment group with 1 update: [@astrojs/vercel](https://github.com/withastro/astro/tree/HEAD/packages/integrations/vercel).


Updates `@astrojs/vercel` from 8.1.4 to 8.1.5
- [Release notes](https://github.com/withastro/astro/releases)
- [Changelog](https://github.com/withastro/astro/blob/main/packages/integrations/vercel/CHANGELOG.md)
- [Commits](https://github.com/withastro/astro/commits/@astrojs/vercel@8.1.5/packages/integrations/vercel)

---
updated-dependencies:
- dependency-name: "@astrojs/vercel"
  dependency-version: 8.1.5
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: deployment
...

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Karim H. <98668332+khadni@users.noreply.github.com>

Author: dependabot[bot]

package-lock.json

@@ -46,7 +46,7 @@
     "@astrojs/prism": "^3.3.0",
     "@astrojs/react": "^4.3.0",
     "@astrojs/sitemap": "^3.4.0",
-    "@astrojs/vercel": "^8.1.4",
+    "@astrojs/vercel": "^8.1.5",
     "@chainlink/components": "^0.4.18",
     "@chainlink/contracts": "1.4.0",
     "@chainlink/contracts-ccip": "1.6.0",