Pass buffers to VTable::deserialize

[connortsui20]

Adds buffers as a parameter to VTable::deserialize. This is needed because we now sometimes store the ConstantArray scalar in the metadata and sometimes in the buffers. We want to make the metadata for ConstantArray a Scalar instead of Option<Scalar>, and that will come in a followup PR.

Followup PR: #6474

This is also blocking the extension scalar work we want to do.

[codspeed-hq]

Merging this PR will not alter performance

✅ 1135 untouched benchmarks
⏩ 1268 skipped benchmarks¹

---

_{Comparing ct/deserialize-with-buffers (bc8066f) with develop (be86749)}

Footnotes

1. 1268 benchmarks were skipped, so the baseline results were used instead. If they were deleted from the codebase, click here and archive them to remove them from the performance reports. ↩