Prepare release v2.0.1 (#174)

Co-authored-by: schneems <[email protected]>

buildpacks/ruby/CHANGELOG.md

@@ -1,12 +1,22 @@
 # Changelog
 
+All notable changes to this project will be documented in this file.
+
+The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
+and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
+
 ## [Unreleased]
 
+## [2.0.1] - 2023-07-25
+
 - Commons: Introduce `build_output` module (https://github.com/heroku/buildpacks-ruby/pull/155)
 - Commons: Remove `gem_list`, `rake_status`, `rake_task_detect` modules (https://github.com/heroku/buildpacks-ruby/pull/155)
 - Commons: `EnvCommand` removed, replaced with `fun_run` (https://github.com/heroku/buildpacks-ruby/pull/139)
 
-## [2.0.0] 2023/01/31
+## [2.0.0] - 2023-01-31
 
 - Initial version of Ruby buildpack in Rust (https://github.com/heroku/buildpacks-ruby/pull/93)
 - Version 2.0.0 for the first release is not a typo. There was an issue in pack where a builder with the same name and version number would reuse artifacts left on image from [prior runs which caused issues](https://github.com/buildpacks/pack/issues/1322#issuecomment-1038241038). There were prior releases of `heroku/ruby` CNB from different sources that triggered this problem. To ensure no one would encounter that issue we developed and released using a version we know has not been used before. Version 2.0 was the first major version without a prior release of `heroku/ruby` CNB from any source.
+
+[unreleased]: https://github.com/heroku/buildpacks-ruby/compare/v2.0.1...HEAD
+[2.0.1]: https://github.com/heroku/buildpacks-ruby/releases/tag/v2.0.1

buildpacks/ruby/buildpack.toml

@@ -2,7 +2,7 @@ api = "0.9"
 
 [buildpack]
 id = "heroku/ruby"
-version = "2.0.0"
+version = "2.0.1"
 name = "Ruby"
 homepage = "https://github.com/heroku/buildpacks-ruby"
 description = "Official Heroku buildpack for using Ruby to target Cloud Native Buildpack (CNB) builds."