Update adapters to use new app.render API

[Rich-Harris]

Follow-up to #3126 — adds missing changeset and updates adapters

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[changeset-bot]

🦋 Changeset detected

Latest commit: ad20046

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 6 packages

Name	Type
@sveltejs/adapter-cloudflare	Patch
@sveltejs/adapter-cloudflare-workers	Patch
@sveltejs/adapter-netlify	Patch
@sveltejs/adapter-node	Patch
@sveltejs/adapter-vercel	Patch
@sveltejs/kit	Patch

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