Add immutable array buffer awareness to structuredClone#11033

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gibson042 wants to merge 6 commits intowhatwg:mainfrom

gibson042:structured-clone-immutable-arraybuffer

Commits on Feb 17, 2025

Prevent structuredClone transfer of immutable array buffers (which are not detachable)
gibson042
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Preserve ArrayBuffer immutability in Structured{Serialize,Deserialize}
gibson042
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