Prepare 0.5.4 release

CHANGELOG.md

@@ -7,7 +7,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/).
 > [!NOTE]
 > While we strive to maintain backwards compatibility as much as possible, we can't guarantee semantic versioning will be strictly followed, as this provider depends on the underlying [bunny.net API](https://docs.bunny.net/reference/bunnynet-api-overview).
 
-## Unreleased
+## [0.5.4] - 2025-01-20
 ### Added
 - resource compute_script_secret ([#27](https://github.com/BunnyWay/terraform-provider-bunnynet/issues/27))