docs: prepare for release of v0.4.5.

Signed-off-by: Romain Bezut <morian@xdec.net>

Author: morian

CHANGELOG.rst

@@ -8,7 +8,7 @@ The format is based on `Keep a Changelog`_ and this project adheres to `Semantic
 .. _Semantic Versioning: https://semver.org/spec/v2.0.0.html
 
 
-0.4.5 (UNRELEASED)
+0.4.5 (2025-09-02)
 ==================
 
 Added