update-rust-toolchain

This is a patch version, that now correctly selects the patch version, if there are multiple present.
Also adds the github action bot as its default author.

What's Changed

• fix: properly split patch and minor versions by @a-kenji in https://github.com/a-kenji/update-rust-toolchain/pull/17
• add: github action bot to the environment by @a-kenji in https://github.com/a-kenji/update-rust-toolchain/pull/18

Full Changelog: https://github.com/a-kenji/update-rust-toolchain/compare/v1...v1.1

This Action will update your rust-toolchain(.toml) file and send a PR whenever it is run. You can run it on a schedule, or manually. Update only the patch version, or also the minor version. See the README.md for more information.