deps: Removed unused deps from unstract-core (#1204)

* deps: Removed unused deps from unstract-core

* Commit pdm.lock changes

* updated lock files

---------

Co-authored-by: Gayathri <142381512+gaya3-zipstack@users.noreply.github.com>

Author: chandrasekharan-zipstack

backend/pdm.lock

@@ -10,10 +10,6 @@ authors = [
     {name = "Zipstack Inc.", email = "devsupport@zipstack.com"}
 ]
 dependencies = [
-    "boto3~=1.34.0",
-    "botocore~=1.34.0",
-    "llama-index==0.12.8",
-    "llama-index-llms-azure-openai==0.3.1",
     "redis~=5.2.1",
     "requests==2.31.0",
     "kombu==5.3.7",