fix: Python 3.8-3.11 compatibility - remove backslash in f-string

Author: AyehBlk

docs/CHANGELOG.md

@@ -6,6 +6,10 @@ 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).
 
 ---
+## [2.1.2] - 2025-12-30
+
+### Fixed
+- Python 3.8-3.11 compatibility: removed backslash in f-string expression
 
 ## [2.1.1] - 2025-12-15