feat: bump astro version in peerDependencies

[anotheri]

this PR fixes #120

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[florian-lefebvre]

Thank you! Can you do 2 things?

1. Add a minor changeset, by running pnpm changeset from the root
2. Format, by running pnpm format from from the root

[anotheri]

@florian-lefebvre when i try to run pnpm format it says:

ERR_PNPM_RECURSIVE_EXEC_FIRST_FAIL  Command "format" not found

[anotheri]

@florian-lefebvre fixed format via npx @biomejs/biome format --write package/package.json, didn't touch formatting of other files, but there are quite a lot of them out format too.