Update CHANGELOG for version 1.0.5

Updated changelog for version 1.0.5 with a fix for whitespace handling in metadata type checks.

Author: luis100

CHANGELOG.md

@@ -5,7 +5,7 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
-## [Unreleased]
+## [1.0.5] - 2025-12-29
 
 ### Fixed
 
@@ -51,3 +51,4 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 [1.0.2]: https://github.com/igfej-justica-gov-pt/dotnet-eark-sip/compare/1.0.1...1.0.2
 [1.0.3]: https://github.com/igfej-justica-gov-pt/dotnet-eark-sip/compare/1.0.2...1.0.3
 [1.0.4]: https://github.com/igfej-justica-gov-pt/dotnet-eark-sip/compare/1.0.3...1.0.4
+[1.0.5]: https://github.com/igfej-justica-gov-pt/dotnet-eark-sip/compare/1.0.4...1.0.5