Prepare release v1.0.4 (#22)

## heroku/release-phase

- No changes.

Co-authored-by: heroku-linguist[bot] <136119646+heroku-linguist[bot]@users.noreply.github.com>

buildpacks/release-phase/CHANGELOG.md

@@ -7,6 +7,10 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+## [1.0.4] - 2024-12-19
+
+- No changes.
+
 ## [1.0.3] - 2024-12-11
 
 - No changes.
@@ -23,7 +27,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 - No changes.
 
-[unreleased]: https://github.com/heroku/buildpacks-release-phase/compare/v1.0.3...HEAD
+[unreleased]: https://github.com/heroku/buildpacks-release-phase/compare/v1.0.4...HEAD
+[1.0.4]: https://github.com/heroku/buildpacks-release-phase/compare/v1.0.3...v1.0.4
 [1.0.3]: https://github.com/heroku/buildpacks-release-phase/compare/v1.0.2...v1.0.3
 [1.0.2]: https://github.com/heroku/buildpacks-release-phase/compare/v1.0.1...v1.0.2
 [1.0.1]: https://github.com/heroku/buildpacks-release-phase/compare/v1.0.0...v1.0.1

buildpacks/release-phase/buildpack.toml

@@ -2,7 +2,7 @@ api = "0.10"
 
 [buildpack]
 id = "heroku/release-phase"
-version = "1.0.3"
+version = "1.0.4"
 name = "Heroku Release Phase"
 description = "Enhances Release Phase with support for multiple, ordered release commands and release-build command."