Update changelog for integrations/meta_llama (#2302)

Co-authored-by: sjrl <10526848+sjrl@users.noreply.github.com>

Author: HaystackBot

integrations/meta_llama/CHANGELOG.md

@@ -1,5 +1,17 @@
 # Changelog
 
+## [integrations/meta_llama-v1.1.1] - 2025-09-23
+
+### 🧹 Chores
+
+- Standardize readmes - part 2 (#2205)
+
+### 🌀 Miscellaneous
+
+- Fix: Fix meta-llama integration test (#2137)
+- Chore: Fix linting in tests for meta-llama integration (#2264)
+- Fix: Fix MetaLlamaChatGenerator to work with `haystack-ai>=2.18` (#2298)
+
 ## [integrations/meta_llama-v1.1.0] - 2025-06-30
 
 ### 🧹 Chores