v6.0.0

Added

• [breaking] Upgrade other dependencies
• [breaking] Upgrade to tokio-rustls 0.26.0, remove unused trait
• Migrate from ktls-recvmsg to nix 0.28
• Switch from futures to futures_util
• Add aws-lc-rs as an alias for aws_lc_rs feature
• Upgrade dependencies

Fixed

• Upgrade to Rust 1.80.1
• Remove nix stuff

Other

• Bump rustls from 0.23.2 to 0.23.5
• Remove Cargo.lock from .gitignore
• Upgrade ktls-sys
• Ignore .DS_Store files
• Bump tokio-rustls
• make aws_lc_rs and ring mutually exclusive for ktls
• More aws_lc_rs support
• Start adding support for aws_lc_rs