Update PR number in CHANGELOG.md

[rmunn]

Automated tooling got the PR number wrong, so let's fix it. Specifically, #5683 is the PR that actually contains the code changes and justification for the changes. #5684 contains just the changeset that was forgotten in #5683. So the automated tooling picked up #5684 as the PR to put in the changelog, but #5683 is the one that anyone reading the changelog will actually care about. By switching the changelog contents to point to #5683 for this release, we let everyone avoid having to make an additional click to find the actually useful information.

I'm not including a changeset in this PR since it makes no code changes. Likewise, no issue link and no tests.

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• It's really useful if your PR references an issue where it is discussed ahead of time. In many cases, features are absent for a reason. For large changes, please create an RFC: /~https://github.com/sveltejs/rfcs
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Tests

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[changeset-bot]

⚠️ No Changeset found

Latest commit: 38549e3

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