Update changelog for integrations/llama_cpp (#2450)

Co-authored-by: vblagoje <[email protected]>

Author: HaystackBot

integrations/llama_cpp/CHANGELOG.md

@@ -1,5 +1,23 @@
 # Changelog
 
+## [integrations/llama_cpp-v1.4.0] - 2025-10-23
+
+### 📚 Documentation
+
+- Add pydoc configurations for Docusaurus (#2411)
+
+### ⚙️ CI
+
+- Download pre-built wheels for llama-cpp-python on macOS (#2235)
+
+### 🧹 Chores
+
+- Fix llama.cpp types (#2271)
+
+### 🌀 Miscellaneous
+
+- Feat: `LlamaCppChatGenerator` update tools param to ToolsType (#2438)
+
 ## [integrations/llama_cpp-v1.3.0] - 2025-08-22
 
 ### 🚀 Features