fix: pin llama-index temporarily (#1806)

* pin llamaindex below 0.9.7 to get tests passing

* pin version explicitly below 0.9.7

* fix pipeline

pyproject.toml

@@ -56,15 +56,15 @@ dev = [
   "strawberry-graphql[debug-server]==0.208.2",
   "pre-commit",
   "arize[AutoEmbeddings, LLM_Evaluation]",
-  "llama-index>=0.9.0",
+  "llama-index>=0.9.0,<0.9.8",
   "langchain>=0.0.334",
   "litellm>=1.0.3"
 ]
 experimental = [
   "tenacity",
 ]
 llama-index = [
-  "llama-index~=0.9.0",
+  "llama-index>=0.9.0,<0.9.8"
 ]
 
 [project.urls]
@@ -98,7 +98,7 @@ dependencies = [
   "arize",
   "langchain>=0.0.334",
   "litellm>=1.0.3",
-  "llama-index>=0.9.0",
+  "llama-index>=0.9.0,<0.9.8",
   "openai>=1.0.0",
   "tenacity",
   "nltk==3.8.1",
@@ -117,7 +117,7 @@ dependencies = [
 [tool.hatch.envs.type]
 dependencies = [
   "mypy==1.5.1",
-  "llama-index>=0.9.0",
+  "llama-index>=0.9.0,<0.9.8",
   "pandas-stubs<=2.0.2.230605",  # version 2.0.3.230814 is causing a dependency conflict.
   "types-psutil",
   "types-tqdm",