Upgrade pyo3 and enable free-threaded Python support

[paleolimbot]

There's a great guide on how to enable free-threaded support here: https://pyo3.rs/v0.26.0/free-threading.html ...for us that mostly means protecting the SedonaContext and DataFrame with locks and using Python::attach() instead of with_gil(). After #228 this in theory opens up Python UDFs that are executed in parallel.

[tanish111]

@paleolimbot I would love to solve this issue can someone assign it to me?

[paleolimbot]

You're welcome to give it a try but we should review + merge #228 before this as that contains a substantial amount of the code that considers interaction with the runtime. If you have some experience with this type of interaction a helpful start might be to review that PR!

[paleolimbot]

#228 is merged! Feel free to give this a go if you are interested!