0.5.5

Magnus 0.5.5 is a patch release, with 1 change.

This release adds support for rb-sys' stable-api feature. This necessitates upping the minimum supported Rust version to 1.60.

Additionally, Ruby 2.6 support requires enabling rb-sys' stable-api-compiled-fallback feature in your Cargo.toml like so:

rb-sys = { version = "*", default-features = false, features = ["stable-api-compiled-fallback"] }

Thanks to @gmalette and @ianks for this change.