Update dependency @rollup/plugin-json to v6

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
@rollup/plugin-json (source)	^5.0.1 -> ^6.0.0
@rollup/plugin-json (source)	^5.0.2 -> ^6.0.0

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Release Notes

rollup/plugins

v6.0.0

Compare Source

2022-12-17

Breaking Changes

• fix: log more robustly when JSON parsing fails #​1361

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[changeset-bot]

🦋 Changeset detected

Latest commit: fcf4bf2

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

This PR includes changesets to release 1 package

Name	Type
@sveltejs/adapter-node	Patch

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[dominikg]

we have to be careful with renovate PRs now, this changes a dependency of adapter-node so needs a changeset.
we also have to check if this could be breaking.

marking as changes needed to avoid accidental merge

[benmccann]

This change is safe. It's just a change to error handling: https://github.com/rollup/plugins/blob/master/packages/json/CHANGELOG.md#breaking-changes

We do need a changeset

[renovate]

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[dominikg]

they changed this.warn to this.error, which fails the build.

https://github.com/rollup/plugins/pull/1361/files#diff-412d92e18a781647b77d5c02b40f7dd4c377fdc88c77e35013af3957135cc879R27

https://rollupjs.org/guide/en/#thiserror

this is probably desired, nontheless updating can fail a build that previously passed with a warning.

[benmccann]

Yeah, I'd consider it more of a bug fix than breaking change