LiteLLM Minor Fixes & Improvements (09/19/2024) (#5793)

* fix(model_prices_and_context_window.json): add cost tracking for more vertex llama3.1 model

8b and 70b models

* fix(proxy/utils.py): handle data being none on pre-call hooks

* fix(proxy/): create views on initial proxy startup

fixes base case, where user starts proxy for first time

 Fixes https://github.com/BerriAI/litellm/issues/5756

* build(config.yml): fix vertex version for test

* feat(ui/): support enabling/disabling slack alerting

Allows admin to turn on/off slack alerting through ui

* feat(rerank/main.py): support langfuse logging

* fix(proxy/utils.py): fix linting errors

* fix(langfuse.py): log clean metadata

* test(tests): replace deprecated openai model

.circleci/config.yml

@@ -558,6 +558,7 @@ jobs:
             pip install "anyio==3.7.1"
             pip install "asyncio==3.4.3"
             pip install "PyGithub==1.59.1"
+            pip install "google-cloud-aiplatform==1.59.0"
       - run:
           name: Build Docker image
           command: docker build -t my-app:latest -f Dockerfile.database .