fix(deps): update dependency llama-index to ^0.14.0 (#2736)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

poetry.lock

@@ -61,7 +61,7 @@ langchain = "^0.3.11"
 langchain-experimental = "^0.3.4"
 langchain-openai = "^0.3.2"
 litellm = "1.79.3"
-llama-index = "^0.13.0"
+llama-index = "^0.14.0"
 llama-index-llms-openai = "^0.5.0"
 lxml = "^6.0.0"
 markdown = "^3.7"