Matt Robinson 865ef496e6
ci: update pinecone test to use serverless (#3127)
### Summary

Closes #3068. Updates the Pinecone connector tests to use serverless
indexes, per the documentation
[here](https://docs.pinecone.io/reference/api/control-plane/create_index).
Also updates the CHANGELOG to mention serverless. Turns out we already
supported it with the client version bump, but it hadn't been tested
yet.

### Testing

See [this CI
job](https://github.com/Unstructured-IO/unstructured/actions/runs/9319836670/job/25655322433?pr=3127)
that passed, running only the Pinecone test.
2024-05-31 15:24:41 +00:00
..
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