add changeset

Author: ocavue

.changeset/vercel-deps.md

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+"@astrojs/vercel": patch
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+Updates dependency `@vercel/analytics` to v2. See the [changelog](https://github.com/vercel/analytics/releases/tag/v2.0.0) for more details.
+Updates dependency `@vercel/routing-utils` to v6. See the [changelog](https://github.com/vercel/vercel/blob/@vercel/routing-utils@6.4.0/packages/routing-utils/CHANGELOG.md#600) for more details.