docs(python): add note to connectorx in user-guide advising arm can't pip install

[deanm0000]

#14138

[alexander-beedie]

Their build targets include aarch64-unknown-linux-gnu and aarch64-apple-darwin, so let's not merge yet (and technically Apple Silicon is an ARM64 derivative and it installs fine, so it would need a small tweak to be accurate).

If it's just not shipping the wheel on Linux aarch64 architectures I'd have thought it might at least try to compile on the target machine (though that's a whole other headache, and then the suggestion to go build it yourself is absolutely correct 🤣). I'd like to confirm the platform details from the originating issue first though.

I'm also not even that sure we should be providing custom build instructions for (potentially) every optional package we reference, as this is a generic issue for less-common architectures, rather than being related to Polars itself. Presumably there are more packages that won't compile, and I can't see that it's on us to provide build instructions for all of them... (@stinodego, want to weigh-in on this one?)

[stinodego]

I'm also not even that sure we should be providing custom build instructions for (potentially) every optional package we reference, as this is a generic issue for less-common architectures, rather than being related to Polars itself. Presumably there are more packages that won't compile, and I can't see that it's on us to provide build instructions for all of them... (@stinodego, want to weigh-in on this one?)

This also feels out-of-scope for me.

[deanm0000]

I just learned this word https://thedecisionlab.com/biases/bikeshedding

[stinodego]

Thanks @deanm0000 for the initiative here, but this information feels a bit too specific to be included in the user guide. It's also subject to becoming outdated whenever connectorx would decide to add linux aarch wheels. So I'm closing this one.