aws-* dependency maintenance

Building my Rust project with lancedb@0.5 with aarch64-pc-windows fails because this architecture isn't supported with ring@0.16 ^1, which is a dependency because lancedb | lance -> lance-index -> lance-io -> aws-config@0.56 -> ring@0.16. Support for aarch64-pc-windows is available in ring@0.17 ^2.

Potential fixes

1. Updating aws-config

   #2510

   This PR bumps a minor version. However, the aws-* dependencies are depending on pre-release versions. The production-ready versions (1+) are now available. Maybe this is worth scheduling in #2079? (However, I'm guessing there are plenty of breaking changes.)

2. Making the aws libs optional

   Could we make these dependencies optional by making them part of cargo feature named 'aws' for lance-io, lance-index, lance, and lancedb? I am not using AWS for my project, perhaps others aren't either.

   This feature could be enabled by default in lance and lancedb for backwards compatibility.

Workaround

In your Cargo.toml, add:

[patch.crates-io]
lance-io = { git = "https://github.com/nickdarvey/lance", branch = "patch-2" }

Start by tracing the dependency chain from lancedb through lance, lance-index, lance-io, aws-config, and ring. Review the dependency declarations for the four named crates and compare the proposed update in #2510 with the scheduling context in #2079. Done means the selected dependency or feature approach supports the reported architecture without breaking existing defaults.